Top 29 Labware Caps on Amazon (Verified You can Buy)
Top 1
1-3ml & 5-30ml Vial Caps, Silicone Peptide Cap for Vials, (20+20) PCS Pink | Fits Vials Necks 13mm-21.5mm in Diameter, fits 1-3ml & 5–30mL vials. Made of flexible silicone
KNOCKO
Ratings for KNOCKO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
Complete 1-3ml & 5-30ml Peptide Vial Caps Pack: You get 20pcs for 1ml, 2ml,3ml & 20pcs for 5ml,10ml,30ml Vial Caps, tailored for 3ml glass vial and 30ml glass vial. These peptide vial caps 30ml and peptide vial caps 3ml grip tightly, preventing loose vial caps covers and acting as reliable peptide caps for vial storage. Works as peptide caps for vials 10ml, peptide caps for vials 3ml, 3ml/30ml caps for vials, and a reliable 3ml vial cover or 10ml vial cover for peptide, insulin, and reagent vials
Premium Food-Grade Silicone – Reusable Vial Caps: Made from food-grade silicone, our peptide caps are reusable and crack-proof. They serve as 3ml vial caps covers peptide solutions and 30ml vial caps covers peptide residues, doubling as 3ml glass vials protective vial caps that seal out dust and moisture. Washable, odorless, and temp-resistant (-4°F to 392°F)
Top 2
3ml Glass Vial Caps, Peptide Vial Caps, Silicone Protective Caps for 1ml 2ml 3ml Glass Vials, Reusable Vial Covers for Peptide Storage and Vial Boxes (8Pcs / 8Colors)
Goqeut
Ratings for Goqeut (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| alisda | - | ❌ | ❌ | ❌ |
Features
Professional Leak-Proof Design: Made of high-quality materials and customized for 3ml glass ampoules and vials, it provides double leak-proof protection, effectively isolates moisture and contaminants, significantly extending the shelf life of reagents, drugs and sensitive liquids while reducing waste
Efficient Color Classification and Management: 8 color schemes are available (purple, white, orange, blue, red, yellow, green, and black), each with its own unique characteristics. This allows for visual coding by date, ingredient, and priority, significantly improving organizational efficiency and operational safety in laboratories, medical institutions, or studios
Top 3
3ml Glass Vial Caps, Peptide Vial Caps, Silicone Protective Caps for 1ml 2ml 3ml Glass Vials, Reusable Vial Covers for Peptide Storage and Vial Boxes (16Pcs / 8Colors)
Goqeut
Ratings for Goqeut (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| alisda | - | ❌ | ❌ | ❌ |
Features
Professional Leak-Proof Design: Made of high-quality materials and customized for 3ml glass ampoules and vials, it provides double leak-proof protection, effectively isolates moisture and contaminants, significantly extending the shelf life of reagents, drugs and sensitive liquids while reducing waste
Efficient Color Classification and Management: 8 color schemes are available (purple, white, orange, blue, red, yellow, green, and black), each with its own unique characteristics. This allows for visual coding by date, ingredient, and priority, significantly improving organizational efficiency and operational safety in laboratories, medical institutions, or studios
Top 4
PATIKIL 10 Pcs GL45 Screw Caps, 45mm Polypropylene Cover Seal Screw Cap Thread Media Bottles for GL45 Media Bottles Glass, Yellow
PATIKIL
GL45
0.0697 x 0.0697 x 0.0697 Inches
Ratings for PATIKIL (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| PATIKIL US | 4,583 | ❌ | ❌ | ❌ |
Features
Material: polyethylene;Inside Diameter: 45 mm / 1.77 inch. Suitable for GL45 Media Glass Bottles
Advantage: Our GL45 Screw Caps are made of polyethylene materials, which can autoclavable maximum temperature up to 140℃ / 284°F. Thermal performance, solvent resistance, autoclavable. Tight seal, leakproof, reduces the risk of liquid evaporation and exposure.
Top 5
Vial Caps for Peptide Storage, Glow in the Dark Silicone Covers
Goqeut
Ratings for Goqeut (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| alisda | - | ❌ | ❌ | ❌ |
Features
Glow in the Dark Upgrade: These peptide vial caps absorb light and glow in low-light conditions, helping you find and identify glass vials in a fridge, vial case, storage box, travel bag, or cabinet.
Fits Popular Vial Sizes: Designed for common 3ml, 5ml, 10ml, and 30ml glass vials, and compatible with many 1ml-100ml glass vials. Also useful for vial caps 10ml, vial caps 30ml, and multi-size vial storage.
Top 6
Goqeut 10ml & 30ml Vial Caps, Silicone Peptide Vial Covers, 15 Pack
Goqeut
SC046
0.4 x 0.4 x 0.5 Inches
Ratings for Goqeut (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| alisda | - | ❌ | ❌ | ❌ |
Features
MULTIPLE SIZES OF PEPTIDE VIAL CAPS Keep small and large peptide vial caps together in one practical set. The 15-piece assortment includes 5 small vial caps and 10 large vial covers, giving mixed vial collections more of the larger size commonly needed for select 10ml and 30ml vials.
13.5MM SMALL CAPS + 20.4MM LARGE VIAL CAPS Some 1ml, 2ml and 3ml vials use a 13.5mm/0.53in metal seal, while some 5ml, 10ml and 30ml vials use a 20.4mm/0.8in metal seal. Measure across the widest outside edge of the existing aluminum seal—not the rubber center, glass neck or vial body.
Top 7
3ml 5ml 10ml 30ml Vial Caps, Peptide Vial Caps Silicone, (20+20) PCS, Purple
KNOCKO
Ratings for KNOCKO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
Purple Color-Coded Combo for 3ml 5ml 10ml 30ml Vials: This 40-pack of purple silicone vial caps acts as vial caps covers peptide, providing vial caps for your 3ml -30ml vial. Use these peptide vial caps as 3ml vial caps covers peptide and 5ml vial caps covers peptide to color-code your vials. Ideal as peptide caps for vials 5ml and peptide caps for vials, they simplify organization.Fits Vials Necks 13mm -21.5mm in Diameter.
Dust & Septum Protection: Each 5ml vial cap and 3ml vial cap serves as a 5ml glass vials protective vial caps and 3ml glass vials protective vial caps, shielding the rubber septum on your 5ml glass vial and 3ml glass vial. These 5ml vial caps covers and 3ml vial caps covers keep lint, dust, and debris away. With vial caps 5ml and vial caps 3ml, your peptide vial caps 5ml and peptide vial caps 3ml Stays Clean, acting as peptide caps for vial safety
Top 8
40PCS 3ml Glass Vial Caps, Silicone Protective Caps for 1ml 2ml 3ml Glass Vials, Peptide Storage Protective Cap, Reusable Vial Covers for Peptide Storage by KNOCKO (Black)
KNOCKO
Ratings for KNOCKO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
✅Protective 3ml Vial Caps Covers Peptide: Designed specifically for 1ml 2ml 3ml 4ml peptide vials, insulin vials or other 3ml glass vials. Reusable Silicone Peptide Vial Covers Fit Peptide Case for Fridge, Fits Vial Neck Diameters of 13-14.5mm (0.51-0.57in). These silicone peptide vial caps forms a tight seal around the rubber stopper and bottle rim. Helps reduce waste of valuable peptide formulations or samples and ensures safe storage in refrigerators, freezers, or lab environments. These peptide covers cap can also be used in combinationx with 3ml insulin vial case. (Only vial caps)
✅Efficient Management with Black 3ml Vial Caps: This set includes 40PCS black vial caps and they offer excellent dust-proof protection, keeping vial contents clean in storage. With universal compatibility, these caps fit most standard 3ml glass vials used in laboratories, pharmacies, or studios. This management system significantly improves workflow efficiency and operational safety. These silicone glass vial covers highly suitable for diabetics, peptide users, laboratory sample vials, or other glass vials.
Top 9
3ml & 5ml Vial Caps, Silicone peptide caps for Vial,(20 +20) PCS, Green | Fits Vials Necks 13mm-21.5mm in Diameter, fits 1–30mL vials. Made of flexible silicone
KNOCKO
Ratings for KNOCKO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
Complete 3ml & 5ml Peptide Vial Caps Pack: You get 20 x 3ml vial caps + 20 x 5ml vial caps, tailored for 3ml glass vial and 5ml glass vial. These peptide vial caps 5ml and peptide vial caps 3ml grip tightly, preventing loose vial caps covers and acting as reliable peptide caps for vial storage. Works as peptide caps for vials 5ml, peptide caps for vials 3ml, 3ml/5ml caps for vials, and a reliable 3ml vial cover or 5ml vial cover for peptide, insulin, and reagent vials
Premium Food-Grade Silicone – Reusable Vial Caps: Made from food-grade silicone, our peptide caps 5ml and peptide caps 3ml are reusable and crack-proof. They serve as 3ml vial caps covers peptide solutions and 5ml vial caps covers peptide residues, doubling as 3ml glass vials protective vial caps and 5ml glass vials protective vial caps that seal out dust and moisture. Washable, odorless, and temp-resistant (-4°F to 392°F)
Top 10
DAWNBOX 10Pack 5ml Glass Vial Cap (10 Colors) Peptide Caps for 5ml 10ml 20ml 30ml Glass Vials Peptide Storage Protective Cap, Reusable Silicone Covers Fit Peptide Case for Fridge
DAWNBOX
Ratings for DAWNBOX (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
🗓️ Weekly Color-Coded Organizer: Includes 10pack 5ml 10ml 30ml 50ml 100ml vial caps in 10 vibrant colors, This allows for visual coding by date, ingredient, and priority. Effortlessly track and manage your daily liquids, supplements, or personal care items for ultimate convenience and organization. Can be paired with DawnBox's peptide container / peptide holder. Peptide caps / liquid cap for glass vials.
✅ Secure Leak & Dust Proof Seal: Features a snug-fitting design that creates an airtight seal, effectively protecting your valuable liquids from evaporation and contamination and dust, helping to maintain cleanliness. Fit Use in Combination with peptide fridge case and peptide vial storage cases small.
Top 11
uxcell 13mm Flip Off Caps, 100PCS Burr-Free Flip Off Top Caps Seals Flip Off Aluminum Plastic Vial Flip Off Seals Caps Cover for Glass Vial Freeze-Dried Bottles, Clear/Matte Gold
uxcell
Ratings for uxcell (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amadeo City | 2,153 | ❌ | ❌ | ❌ |
Features
Product Information - You will receive 100 Pcs of flip off caps for ample supply. The caps have an inside diameter of 13 mm/0.5 inch; an outer diameter of 15 mm/0.6 inches; a height of 7 mm/0.3 inches
Material - The cover is made of good aluminum and plastic, smooth and burr-free after opening, offering a secure seal for glass vials.
Top 12
14Pack 3ml Vial Caps (7 Colors) Peptide Caps for 1ml 2ml 3ml 4ml Glass Vials Peptide Storage Protective Cap, Reusable Silicone Peptide Vial Caps Fit Peptide Case for Fridge by DawnBox
DAWNBOX
Ratings for DAWNBOX (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
🗓️ Weekly Color-Coded Organizer: Includes 14 caps in 7 vibrant colors (2 of each), perfectly designed to match the 7 days of the week. Effortlessly track and manage your daily liquids, supplements, or personal care items for ultimate convenience and organization. Can be paired with DawnBox's peptide fridge case / peptide holder. Peptide caps / liquid cap for glass vials.
✅ Secure Leak & Dust Proof Seal: Features a snug-fitting design that creates an airtight seal, effectively protecting your valuable liquids from evaporation and contamination and dust, helping to maintain cleanliness. Great for peptide storage and peptide travel case tsa approved. What are the diameter of the peptide vial caps? (Looking for something around 14 mm wide to fit tiny 10 ml Vetsulin vial?) Yes, the diameter of our 3ml vial caps are 13.5mm, they made of soft silicone and can be stretched. Fit your tiny 10 ml Vetsulin vial.
Top 13
3ml & 5ml Vial Caps, Peptide Vial Caps,Silicone Cap, (10 +10) PCS, Green
KNOCKO
Ratings for KNOCKO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
Complete 3ml & 5ml Peptide Vial Caps Pack: You get 10 x 3ml vial caps + 10 x 5ml vial caps, tailored for 3ml glass vial and 5ml glass vial. These peptide vial caps 5ml and peptide vial caps 3ml grip tightly, preventing loose vial caps covers and acting as reliable peptide caps for vial storage. Works as peptide caps for vials 5ml, peptide caps for vials 3ml, 3ml/5ml caps for vials, and a reliable 3ml vial cover or 5ml vial cover for peptide, insulin, and reagent vials
Premium Food-Grade Silicone – Reusable Vial Caps: Made from food-grade silicone, our peptide caps 5ml and peptide caps 3ml are reusable and crack-proof. They serve as 3ml vial caps covers peptide solutions and 5ml vial caps covers peptide residues, doubling as 3ml glass vials protective vial caps and 5ml glass vials protective vial caps that seal out dust and moisture. Washable, odorless, and temp-resistant (-4°F to 392°F)
Top 14
3ml&5ml Vial Caps, Silicone peptide caps for Vial, (20 +20) PCS, Purple | Fits Vials Necks 13mm-21.5mm in Diameter, fits 1–30mL vials. Made of flexible silicone
KNOCKO
Ratings for KNOCKO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
Complete 3ml&5ml Peptide Vial Caps Pack: You get 20 x 3ml vial caps + 20 x 5ml vial caps, tailored for 3ml glass vial and 5ml glass vial. These peptide vial caps 5ml and peptide vial caps 3ml grip tightly, preventing loose vial caps covers and acting as reliable peptide caps for vial storage. Works as peptide caps for vials 5ml, peptide caps for vials 3ml, 3ml/5ml caps for vials, and a reliable 3ml vial cover or 5ml vial cover for peptide, insulin, and reagent vials
Premium Food-Grade Silicone – Reusable Vial Caps: Made from food-grade silicone, our peptide caps 5ml and peptide caps 3ml are reusable and crack-proof. They serve as 3ml vial caps covers peptide solutions and 5ml vial caps covers peptide residues, doubling as 3ml glass vials protective vial caps and 5ml glass vials protective vial caps that seal out dust and moisture. Washable, odorless, and temp-resistant (-4°F to 392°F)
Top 15
40pcs 3ml Peptide Vial Caps, Glass Vials Covers kit
Goqeut
Ratings for Goqeut (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| alisda | - | ❌ | ❌ | ❌ |
Features
Professional Leak-Proof Design: Made of high-quality materials and customized for 3ml glass ampoules and vials, it provides double leak-proof protection, effectively isolates moisture and contaminants, significantly extending the shelf life of reagents, drugs and sensitive liquids while reducing waste
Efficient Color Classification and Management: 8 color schemes are available (purple, white, orange, blue, red, yellow, green, and black), each with its own unique characteristics. This allows for visual coding by date, ingredient, and priority, significantly improving organizational efficiency and operational safety in laboratories, medical institutions, or studios
Top 16
3ml Silicone Peptide Vial Caps, 35 Pcs Reusable Protective Covers Fits 1ml 2ml 3ml Glass Bottles, Multi-Color Lids for Peptide Case Storage & Fridge Organization, 7 Colors
WIBOND
4.14 x 3.94 x 0.59 Inches
Ratings for WIBOND (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| WiBonD Direct | - | ❌ | ❌ | ❌ |
Features
Leak-Proof Silicone Protection: Custom-designed for standard 3ml glass vials, these premium silicone caps provide a secure, leak-proof seal. They effectively block out dust and moisture, helping to maintain the quality of your liquids, peptides, and reconstitution solutions during fridge storage or daily transport.
35-Pack with 7 Vibrant Colors: This upgraded set includes 35 reusable vial covers in 7 distinct colors (Red, Yellow, Blue, Green, Black, White, and Purple). Easily color-code your glass bottles by date or ingredient for quick identification in your storage case or organizer box, significantly improving daily efficiency.
Top 17
5ml 10ml 30ml Reusable Peptide Vial Caps, 6 Color-Coded Leak Proof Snap On Covers, Dust Proof Protective Caps for 5-100ml Glass Vials, Lab Medical DIY Home Organization
Mazentrix
GVPVC-05
1.1 x 1.1 x 0.3 Inches
Ratings for Mazentrix (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Mazentrix | - | ❌ | ❌ | ❌ |
Features
✅ SECURE LEAK PROOF AND DUST PROOF SEAL——Features a snug-fitting design that creates an airtight seal, effectively protecting your valuable liquids from evaporation and contamination. This significantly extends the shelf life of reagents, peptides, and other sensitive liquids, helping you reduce waste and save money.
🎨 EFFORTLESS 6-COLOR CODING SYSTEM——Includes 12 caps in 6 vibrant colors (2 of each) for instant visual organization. Perfect for coding by content, date, user, or priority—ideal as a weekly supplement schedule or for project management. This system boosts efficiency and reduces errors in labs, clinics, and home use.
Top 18
SUPERFINDINGS 30Pcs 32.5mm Plastic Labware Caps Black Leakproof Lid Caps Poly Seal Screw Caps Tooth Bottle Cap with Hopper Inner Plug for Essential Oil Empty Refillable Vial
SUPERFINDINGS
Ratings for SUPERFINDINGS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| SUPERFINDINGS US | - | ❌ | ❌ | ❌ |
Features
30 Leak-proof Caps: You will receive 30 caps in a consistent style, enough for everyday food sealing and liquid sealing.
32.5mm Bottle Opening: Our black dental bottle caps are 32.5mm in diameter and 13.5mm thick. Please make sure the bottle mouth is 32.5mm in diameter before purchasing, otherwise it is not suitable.
Top 19
Peptide Vial Caps, 30 Pack Reusable Silicone Covers, 24 Small & 6 Large, for 13.5mm & 20.4mm Vial Tops, 6 Colors for 1ml, 2ml,3ml, 5ml, 10ml, 30m, 50ml, 100ml Glass Vials
HJUHBDJ
Ratings for HJUHBDJ (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| JaL Tech | - | ❌ | ❌ | ❌ |
Features
30 Pack Vial Caps in 2 Sizes: This HJUHBDJ package includes a total of 30 reusable vial caps, featuring 24 small caps designed for 1-3ml glass bottles and 6 large caps that fit 5-100ml glass vials. This combination provides sufficient replacements for various daily storage needs.
Washable & Reusable Design: Crafted from flexible and durable material, these peptide vial caps are designed for long-term repeated use. They can be easily washed with water after each use, reducing waste and providing a practical solution for sealing opened liquid containers.
Top 20
20 Pack 5-100ml Glass Vials Protective Vial Caps, Leak-Proof Dust-Resistant Lids Cover for Flip Off Caps 5-100ml Vials for Injection, Easy to Clean and Reusable, 10 Assorted Colors
EGNGY
EG-FHP-08-1
1.0 x 1.0 x 0.4 inches
Ratings for EGNGY (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| EGNGY Direct | - | ❌ | ❌ | ❌ |
Features
Preserve Opened but Partially Used Liquids: Designed for 5-100ml glass injection vials, our reusable vial caps create a dual-seal barrier that locks in partially used liquids; By blocking moisture and dust, they help maintain cleanliness, extend shelf life, and reduce waste
Color-Coded Convenience: Vial caps in 10 distinct colors (2 of each), this set enables intuitive visual label and storage organization by ingredient, date, or priority; Perfect for laboratories, medical facilities, and studios seeking efficient workflow and easy identification across multiple vials or bottles
Top 21
Thyle 21 Pack 3ml 5-100ml Peptide Vial Caps Glass Vials Protective Vial Lid Reusable Caps Covers Leak and Dust Proof Cap Adapter Storage for 3ml 5ml 10ml, 6 Colors for Organization and Classification
Thyle
DEA-Thyle-5004
6.3 x 2.17 x 0.63 inches
0.14 pounds
Ratings for Thyle (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Deandumm | - | ❌ | ❌ | ❌ |
Features
Package Includes:you will receive 21 pack vial caps, including 12 caps for 3ml bottles, 2 of each of 6 different colors, and 9 caps for 5ml-100ml bottles, 3 of each of 3 different colors;These peptide vial caps easily store unused liquid from opened bottles, helping to keep bottles clean and reduce liquid waste
Secure Seal Design: these vial adapters are specially designed with a tight fitting edge that creates a barrier, minimizing contact between the liquid and air, preventing dust and evaporation, and allowing for refrigerated storage
Top 22
PATIKIL 20mm Flip Off Caps, 200 Pcs Flip Off Caps Flip Off Seals Flip Off Vial Seals Plastic Aluminum Caps Cover for Glass Vial, Yellow
PATIKIL
RXZER23
0.8661 x 0.7874 x 0.3346 Inches
Ratings for PATIKIL (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| PATIKIL US | 4,583 | ❌ | ❌ | ❌ |
Features
Caps material: Aluminum, Plastic; Suitable for: 20mm Glass Vial; Inside diameter: 20mm; Outer diameter: 22mm; High: 8.5mm
Advantage:The cover is smooth and burr-free after opening, and the cotton will not get caught .
Top 23
Moicstiy 24/410 Twist Top Caps, 12Pcs, Black
Moicstiy
1.06 x 1.06 x 1.65 Inches
0.0882 Pounds
Ratings for Moicstiy (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Xxun Rei | - | ❌ | ❌ | ❌ |
Features
Package contents: You will receive 12 pcs black twist top caps with a 24mm(0.94inch) neck diameter for all threaded 410 bottles.
Material: This squeeze bottle cap is made of PP plastic, good sealing, can prevent the internal liquid of the product due to environmental factors and deterioration, can be used for a long time.
Top 24
40PCS Silicone Peptide Vial Caps, Protective Vial Caps for 3ML Vials, Reusable Peptide Vial Caps Covers Peptide Storage for 1ml 2ml 3ml Glass Vials White
KNOCKO
Ratings for KNOCKO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
✅Protective 3ml Vial Caps Covers Peptide: Designed for 3ml peptide vials, insulin vials or other 1ml 2ml glass vials. These silicone peptide vial caps forms a tight seal around the rubber stopper and bottle rim. Helps reduce waste of valuable peptide formulations or samples and ensures safe storage in refrigerators, freezers, or lab environments. These peptide covers cap can also be used in insulin vial case or peptide case for fridge. (Only vial caps)
✅Food-Grade BPA-Free Silicone Construction: Manufactured from food-grade, BPA-free silicone material that is freezer-safe and designed for repeated use. Fits 1ml 2ml 3ml vials. Compatible with the peptide vial case in the refrigerator. The caps are easy to maintain with simple water rinsing and wipe-clean functionality for long-lasting performance
Top 25
3ml Glass Vial Caps, Peptide Vial Caps, Silicone Protective Caps for 1ml 2ml 3ml Glass Vials, Reusable Vial Covers for Peptide Storage and Vial Boxes (24Pcs / 8Colors)
Goqeut
Ratings for Goqeut (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| alisda | - | ❌ | ❌ | ❌ |
Features
Professional Leak-Proof Design: Made of high-quality materials and customized for 3ml glass ampoules and vials, it provides double leak-proof protection, effectively isolates moisture and contaminants, significantly extending the shelf life of reagents, drugs and sensitive liquids while reducing waste
Efficient Color Classification and Management: 8 color schemes are available (purple, white, orange, blue, red, yellow, green, and black), each with its own unique characteristics. This allows for visual coding by date, ingredient, and priority, significantly improving organizational efficiency and operational safety in laboratories, medical institutions, or studios
Top 26
Goqeut 20mm Peptide Vial Caps for Select 5ml, 10ml & 30ml Vials, 8 Pcs
Goqeut
Ratings for Goqeut (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| alisda | - | ❌ | ❌ | ❌ |
Features
20MM FIT — ONE SIZE ONLY All 8 covers are the same size and designed for vial tops measuring 20mm across. The 8 colors do not represent different cap sizes.
MEASURE THE VIAL TOP BEFORE ORDERING Vial capacity alone does not determine compatibility. These may fit select 5ml, 10ml and 30ml vials only when the outside diameter of the existing vial top is 20mm.
Top 27
12 Pack Reusable Vial Caps, 6 Color-Coded Leak Proof Caps for 1ml 2ml 3ml Glass Vials, Protective Snap On Dust Proof Covers for Laboratory, Medical, DIY and Home Organization
Mazentrix
GVPVC-3
0.8 x 0.8 x 0.3 Inches
Ratings for Mazentrix (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Mazentrix | - | ❌ | ❌ | ❌ |
Features
✅ SECURE LEAK PROOF AND DUST PROOF SEAL——Features a snug-fitting design that creates an airtight seal, effectively protecting your valuable liquids from evaporation and contamination. This significantly extends the shelf life of reagents, peptides, and other sensitive liquids, helping you reduce waste and save money
🎨 EFFORTLESS 6-COLOR CODING SYSTEM——Includes 12 caps in 6 vibrant colors (2 of each) for instant visual organization. Perfect for coding by content, date, user, or priority—ideal as a weekly supplement schedule or for project management. This system boosts efficiency and reduces errors in labs, clinics, and home use.
Top 28
40PCS Silicone Peptide Vial Caps, Protective Vial Caps for 3ML Vials, Reusable Peptide Vial Caps Covers Peptide Storage for 1ml 2ml 3ml Glass Vials Black
KNOCKO
Ratings for KNOCKO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
✅Protective 3ml Vial Caps Covers Peptide: Designed for 3ml peptide vials, insulin vials or other 1ml 2ml glass vials. Fits vials necks 13mm -14.5mm in diameter. These silicone peptide vial caps forms a tight seal around the rubber stopper and bottle rim. Helps reduce waste of valuable peptide formulations or samples and ensures safe storage in refrigerators, freezers, or lab environments. These peptide covers cap can also be used in insulin vial case or peptide case for fridge. (Only vial caps)
✅Food-Grade BPA-Free Silicone Construction: Manufactured from food-grade, BPA-free silicone material that is freezer-safe and designed for repeated use. Fits 1ml 2ml 3ml vials. Compatible with the peptide vial case in the refrigerator. The caps are easy to maintain with simple water rinsing and wipe-clean functionality for long-lasting performance
Top 29
3ml & 5ml Vial Caps, Peptide Vial Caps,Silicone Cap, (10 +10) PCS, Pink | Fits Vials Necks 13mm-21.5mm in Diameter, fits 1–30mL vials. Made of flexible silicone
KNOCKO
Ratings for KNOCKO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KNOCKO | - | ❌ | ❌ | ❌ |
Features
Complete 3ml & 5ml Peptide Vial Caps Pack: You get 10 x 3ml vial caps + 10 x 5ml vial caps, tailored for 3ml glass vial and 5ml glass vial. These peptide vial caps 5ml and peptide vial caps 3ml grip tightly, preventing loose vial caps covers and acting as reliable peptide caps for vial storage. Works as peptide caps for vials 5ml, peptide caps for vials 3ml, 3ml/5ml caps for vials, and a reliable 3ml vial cover or 5ml vial cover for peptide, insulin, and reagent vials
Premium Food-Grade Silicone – Reusable Vial Caps: Made from food-grade silicone, our peptide caps 5ml and peptide caps 3ml are reusable and crack-proof. They serve as 3ml vial caps covers peptide solutions and 5ml vial caps covers peptide residues, doubling as 3ml glass vials protective vial caps and 5ml glass vials protective vial caps that seal out dust and moisture. Washable, odorless, and temp-resistant (-4°F to 392°F)
Top 10 Labware Caps - Verified to Buy (October 2026)
- 1. 1-3ml & 5-30ml Vial Caps, Silicone Peptide Cap for Vials,...
- 2. 3ml Glass Vial Caps, Peptide Vial Caps, Silicone Protective Caps...
- 3. 3ml Glass Vial Caps, Peptide Vial Caps, Silicone Protective Caps...
- 4. PATIKIL 10 Pcs GL45 Screw Caps, 45mm Polypropylene Cover Seal...
- 5. Vial Caps for Peptide Storage, Glow in the Dark Silicone...
- 6. Goqeut 10ml & 30ml Vial Caps, Silicone Peptide Vial Covers,...
- 7. 3ml 5ml 10ml 30ml Vial Caps, Peptide Vial Caps Silicone,...
- 8. 40PCS 3ml Glass Vial Caps, Silicone Protective Caps for 1ml...
- 9. 3ml & 5ml Vial Caps, Silicone peptide caps for Vial,(20...
- 10. DAWNBOX 10Pack 5ml Glass Vial Cap (10 Colors) Peptide Caps...
Top 10 Labware Caps Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- KNOCKO
- Goqeut
- PATIKIL
- DAWNBOX
- uxcell
- WIBOND
- Mazentrix
- SUPERFINDINGS
- HJUHBDJ
- EGNGY
Top 4 Labware Caps Sellers: CPR Seller Rank List
CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.
- 1. Amadeo City : 27,273 Yearly Feedback , Avg. Ratings 4.8
- 2. PATIKIL US : 14,251 Yearly Feedback , Avg. Ratings 4.7
- 3. Deandumm : 1,499 Yearly Feedback , Avg. Ratings 4.9
- 4. SUPERFINDINGS US : 1,172 Yearly Feedback , Avg. Ratings 4.9
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | Amadeo City | 27,273 | 4.8 |
| 🥈 | PATIKIL US | 14,251 | 4.7 |
| 🥉 | Deandumm | 1,499 | 4.9 |
| 4 | SUPERFINDINGS US | 1,172 | 4.9 |
[Get] Labware Caps Deals (✅Exclusively for Prime)
What does "Amazon Fulfilled" Mean?
Amazon Fulfilled refers to products handled by Amazon's logistics, which indicates that the product is stored, packed, and shipped by Amazon from one of its fulfillment centers.
When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.
What does "Prime" Mean?
"Prime" refers to Amazon Prime Member (Join Amazon Prime Now), which indicates eligibility for Prime benefits. When you see "Prime" next to a product on Amazon, This generally means that if you are an Amazon Prime member, you can get free two-day shipping on that product, and sometimes even same-day or one-day shipping depending on your location.
Prime members also have access to other benefits, including 2-Day Shipping, Exclusive Member Deals, Prime Video, Buy With Prime, Amazon Music, Prime Gaming, and more.
What does "Free Shipping" Mean?
"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.
Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.
Why Should You Trust Us?
Now hundreds and thousands of Lab & Scientific Products supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Labware Caps to buy for new October 2026?
CherryPicks’s Methodology for Evaluating Labware Caps
We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Lab & Scientific Products items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.
We collected and analyzed 259 of Labware Caps reviews based on our selection criteria. It helped us shortlist the top qualified and rated Labware Caps for Lab & Scientific Products, We found that most customers choose Labware Caps with an average price of $7.78, and the top brands are uxcell, PATIKIL, Thyle And SUPERFINDINGS.
Then our expert-level editors reviewed all those quality items and selected the top 29 Labware Caps for you, We have researched hundreds of sellers and picked the top sellers for Lab & Scientific Products, including Amadeo City, PATIKIL US, Deandumm And SUPERFINDINGS US. The 1-3ml & 5-30ml Vial Caps, Silicone Peptide Cap ... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 15 consumers with an average rating of 4.8.
We've helped a lot of satisfied users get the right Industrial & Scientific product based on their needs, and save lots of time for them to pick Labware Caps to buy.
Brandi is a woman in tech who loves to write about the electronics and gadgets she has used. On this site, she would be providing you unbiased reviews of electronics as they are released into the market to make you know what to expect before making a purchase.