Best Labware Caps (April 2024) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

BAOSHISHAN 100ml Hydrothermal Synthesis Autoclave Reactor 6Mpa 240C 304 Stain...

9.9
CPR Score
Top 2

20mm Green Flip Top Caps-100 Pcs Aluminum-Plastic Green Caps for Glass Vial

9.7
CPR Score
Top 3

Wheaton 239255 Black Phenolic Screw Cap with PE Poly-Seal Liner, 22-400 Size ...

9.7
CPR Score
Tips


Our team has analyzed 114 products of different Lab & Scientific Products brands, including Pyrex, GreenHealth, Hudson Exchange, BAOSHISHAN, LabZhang, Chudeng, Ks-Tek, MEETOOT, Pastein, 20mm White Flip Off Caps 100pk, 20mm Flip Off Aluminum Caps Green, Happybrew, MagnaKoys, SANP, portURBAN, Biocomma, Globe Scientific And Wheaton. The following list of top 29 Labware Caps is prepared for the customers by analyzing and comparing different 114 Labware Caps reviews.

* Cherrypicksreviews.com is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Labware Caps Rated by CherryPicks

Market Overview
Labware Caps Reviewed
  • Reviews Analyzed: 383 Items
  • CPR Avg. Rating: 8.6 / 10
29 Products Evaluated
  • Highest Price: $228.94
  • Lowest Price: $7.54
  • Avg. Price: $38.24
Price Disclaimer

Top 29 Labware Caps on Amazon (Verified You can Buy)

Top 1

BAOSHISHAN 100ml Hydrothermal Synthesis Autoclave Reactor 6Mpa 240C 304 Stainless Steel High-pressure with polytetrafluoroethylene Lining Acid and Alkali Resistance (100ML)

BAOSHISHAN
ZQ-670
5.732 Pounds

Ratings for BAOSHISHAN (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Boshi Electronic Instrument -

Features

Max test temperature:240 degrees; Security temperature: 220 degrees, Max pressure: 6MPa
The hydrothermal synthesis reactor using high-quality stainless steel processing. Kettle lid body and sealed with durable, reliable cable seal structure, the sealing effect long-term stability without leakage.
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Top 2

20mm Green Flip Top Caps-100 Pcs Aluminum-Plastic Green Caps for Glass Vial

Chudeng
IDT013-G.

Ratings for Chudeng (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
ChuDeng Ltd -

Features

Quantity: 100
Material: Aluminum-plastic
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Top 3

Wheaton 239255 Black Phenolic Screw Cap with PE Poly-Seal Liner, 22-400 Size (Pack of 144)

Wheaton
239255
1.3007 Pounds

Ratings for Wheaton (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Black phenolic screw cap
Poly-Seal liner is manufactured from low density polyethylene
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Top 4

20mm White Flip Off Caps 100pk

20mm White Flip Off Caps 100pk
0.09 Pounds

Ratings for 20mm White Flip Off Caps 100pk (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
ACSPharma -
American Clinical Supplies -
Top 5

Ks-Tek 1pcs Blue GL45 Liquid Media Extractor Cap

Ks-Tek
KSUS-GL45-TUBEM

Ratings for Ks-Tek (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
KS-Tek -
BIOMALL -

Features

Lid is designed to provide a sterile environment for media extractions
A luer lock is available for a screw on connection to any luer lock syringe.
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Top 6

portURBAN 18-400 Phenolic Polycone Caps for Tight Leak-Proof Seal on Bottles with Neck Size (pack of 50), Black

portURBAN

Ratings for portURBAN (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
portURBAN Craft & Candle -

Features

Black phenolic polycone cap: Fits vials and boston round bottles with a neck size of 18-400. Please make sure your bottle next size is 18-400 to ensure a correct fit
Leak-proof seal: These caps will completely seal your liquid contents and prevent leaking
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Top 7

Pastein Blue GL45 Polypropylene Screw Cap with Internal Molded Seal Ring for Lab Prex Media Bottles (Case of 12)

Pastein
GL45-Cap

Ratings for Pastein (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Pastein -

Features

Solid screw cap with plug seal, fit for standard GL 45 neck size media glass bottle, linerless
Cap Material: Polypropylene(PP), plug seal, autoclavable maximum temperature up to 140℃
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Top 8

Wheaton 239288 White Polypropylene Screw Cap with Foamed Polyethylene Liner, 48-400 Size (Pack of 72)

Wheaton
239288
10.0 x 6.9 x 3.6 Inches
1.0 Pounds

Ratings for Wheaton (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

White polypropylene screw cap provides clear surface for writing on cap
Foamed polyethylene liner provides good chemical resistance for acids, alkalis, solvents, alcohols, oils, household cosmetics and aqueous products
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Top 9

MEETOOT 12pcs Phenolic Resin Cover 28mm Black Poly Seal Screw Caps for Daily Chemicals, Food, Cosmetics Bottles

MEETOOT
PRCPSSC-B28-12

Ratings for MEETOOT (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
ToToT -

Features

Made of durable phenolic plastic, it can withstand fermentation pressure and chemicals. It can be reused and durable. Please confirm that the bottle mouth diameter is 28mm before purchase, otherwise it is not applicable
Insert itself around the sealing area to create a sealing environment, keep its liquid contents in the bottle, and prevent liquid leakage, carbonation and gas escape
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Top 10

Wheaton W224221 Aluminum Crimp Seal with PTFE/Silicone Septa for Headspace Vial, 20mm Closure Size (Case of 100)

Wheaton
W224221
0.42 Pounds

Ratings for Wheaton (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

They are offered in packs of 100 or can be purchased with vials in Convenience Packs
Score lines allow for internal pressure release
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Top 11

100 Pcs 20mm Flip Off Caps, Flip-Off Vial Seals, Pharmaceutical Caps, Plastic-Aluminum Flip Off Caps, Flip Off Caps for Glass Vial (Red)

LabZhang

Ratings for LabZhang (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
LabZhang-USA -
Top 12

Wheaton 239259 Black Phenolic Screw Cap with PE Poly-Seal Liner, 28-400 Size (Pack of 144)

Wheaton
1702A87CS
2.05 Pounds

Ratings for Wheaton (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Black phenolic screw cap
Poly-Seal liner is manufactured from low density polyethylene
Show More
Top 13

portURBAN 22-400 Phenolic Polycone Caps for Tight Leak-Proof Seal on Bottles with 22-400 Neck Size (pack of 50), Black

portURBAN

Ratings for portURBAN (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
portURBAN Craft & Candle -

Features

Black phenolic polycone cap: Fits vials and boston round bottles with a neck size of 22-400. Please make sure your bottle next size is 22-400 to ensure a correct fit
Leak-proof seal: These caps will completely seal your liquid contents and prevent leaking
Show More
Top 14

Wheaton 239220 White Polypropylene Screw Cap with Poly-Vinyl Liner, 70-400 Size (Pack of 48)

Wheaton
239220

Ratings for Wheaton (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

White polypropylene screw cap provides clear surface for writing on cap
Poly-vinyl liner provides an excellent moisture barrier
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Top 15

20mm Flip Off Aluminum Caps (Green Seal)

20mm Flip Off Aluminum Caps Green

Ratings for 20mm Flip Off Aluminum Caps Green (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
American Clinical Supplies -

Features

20mm Flip Off Aluminum Caps Green
Top 16

Biocomma 100pcs 13mm Aluminum Caps (Blue)

Biocomma

Ratings for Biocomma (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
BIOMALL -

Features

Product specifications?13mm
Material: Aluminium + PP
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Top 17

Happybrew - HOZQ8-609 Standard Carboy Cap New Type For 3/5/6 gal Glass Carboys

Happybrew
HOZQ8-609
2.5 x 2.5 x 3.5 Inches

Ratings for Happybrew (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Hobby Homebrew -

Features

Standard carboy cap
Fits 3, 5 and 6 gallon carboys
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Top 18

Hudson Exchange PP Closure With Foam Liner for 2.5 gal Hedpaks, 63mm, White, 2 Pack

Hudson Exchange
1108-2
2.75 x 2.75 x 1.88 Inches
0.05 Pounds

Ratings for Hudson Exchange (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Hudson Exchange -
Consolidated Plastics -

Features

Replacement Closure for Hudson Exchange 2. 5 Gallon Hidaka Containers
63MM PP Closure Features a F217 Foam Liner
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Top 19

Ks-Tek 1pcs Blue GL45 Safety Cap with Two Holes,3 Hose Coupler for 1/8"(2.4-3.2mm) I.D. tubing

Ks-Tek
KSUS-GL45-3JM

Ratings for Ks-Tek (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
KS-Tek -

Features

Cap O.D.:53.8 mm
Cap Material: Polypropylene Insert Material: PTFE
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Top 20

Wheaton 240680 Black Open-Top Phenolic Screw Cap with Gray Chlorobutyl/50 Septa and Flange, 33-430 Size, Autoclavable (Case of 100)

Wheaton
240680
3.42 Pounds

Ratings for Wheaton (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
ApriveStore -
JSeCom -

Features

Black Phenolic Screw Caps for Wheaton narrow mouth media bottles
Top 21

Wheaton 239251 Black Phenolic Screw Cap with PE Poly-Seal Liner, 18-400 Size (Pack of 144)

Wheaton
239251
1.06 Pounds

Ratings for Wheaton (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
BioTech Solutions -

Features

Black phenolic screw cap
Poly-Seal liner is manufactured from low density polyethylene
Show More
Top 22

Wheaton 239257 Black Phenolic Screw Cap with PE Poly-Seal Liner, 24-400 Size (Pack of 144)

Wheaton
239257
1.3 Pounds

Ratings for Wheaton (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Black phenolic screw cap
Poly-Seal liner is manufactured from low density polyethylene
Show More
Top 23

Magnakoys Black 22-400 Continuous Thread Closure Caps for Vials (22-400, Black, 100)

MagnaKoys

Ratings for MagnaKoys (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Magnakoys 359

Features

GPI Thread Finish: 22-400
Shell Material: Polypropylene
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Top 24

Corning Disposable Phenolic Threaded Screw Caps with Rubber Liners - GPI 18-415 Disposable Caps for Lab Glassware – Black Screw Cap Lab Caps, Pack of 50

Pyrex
A99999

Ratings for Pyrex (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
PYREX Glass - Labware -

Features

DISPOSABLE CAPS: The black screw caps are designed for single use, and are ideal for labs, schools, and home STEM activities and science experiments.
18-415 THREADS: These lab caps are suitable for use with lab tubes that have a GPI 13-415 thread, or other compatible laboratory equipment.
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Top 25

GreenHealth Phenolic Cone Lined Caps, fits Bottle Neck Size 28/400 (Pack of 24)

GreenHealth

Ratings for GreenHealth (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Hobby Homebrew -
Greenals 5,551

Features

Phenolic Cone Lined Caps (Pack of 24)
Fits bottle neck size 28/400
Top 26

Ks-Tek 5pcs GL45 Screw Caps with Pouring Ring for Laboratory Glass Bottles, Polypropylene, 45 mm (Blue)

Ks-Tek
KSUS-GL45PP-M

Ratings for Ks-Tek (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
KS-Tek -

Features

With Pouring Ring
Various colors available GL45 Screw Cap
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Top 27

Pastein Blue GL45 2-Port Safety Filling Cap with Two Holes for Glass Bottles, 1/8 Inch OD Tubing, Complete Kit (Case of 2)

Pastein

Ratings for Pastein (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Pastein -

Features

Screw cap with 2 silicone plugs, fit GL 45 neck size bottle
Cap Material: Polypropylene(PP) and PTFE insert, autoclavable
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Top 28

Wheaton 239284 White Polypropylene Screw Cap with Foamed Polyethylene Liner, 33-400 Size (Pack of 144)

Wheaton
239284
0.97 Pounds

Ratings for Wheaton (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

White polypropylene screw cap provides clear surface for writing on cap
Foamed polyethylene liner provides good chemical resistance for acids, alkalis, solvents, alcohols, oils, household cosmetics and aqueous products
Show More
Top 29

Globe Scientific 113146C Polyethylene Snap Cap with Single Thumb Tabs for 13mm Glass/Evacuated Tubes and 12mm Plastic Test Tubes, 13mm Size, Clear (Case of 1000)

Globe Scientific
113146C

Ratings for Globe Scientific (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Country of Origin : United States
Part Number: 113146C

Top 10 Labware Caps - Verified to Buy (Apr. 2024)

Top 10 Labware Caps Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • BAOSHISHAN
  • Chudeng
  • Wheaton
  • 20mm White Flip Off Caps 100pk
  • Ks-Tek
  • portURBAN
  • Pastein
  • MEETOOT
  • LabZhang
  • 20mm Flip Off Aluminum Caps Green

Top 10 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.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 Magnakoys 6,150 4.7
🥈 Greenals 958 4.8
🥉 Hobby Homebrew 547 4.8
4 Consolidated Plastics 511 4.8
5 Amazon.com 385 4.7
6 ToToT 278 4.7
7 ChuDeng Ltd 161 4.7
8 ApriveStore 128 3.8
9 Boshi Electronic Instrument 105 4.8
10 LabZhang-USA 98 4.8
View or download top Labware Caps seller & rating report
Magnakoys [6150] Greenals [958] Hobby Homebrew [547] Consolidated Plastics [511] Amazon.com [385] ToToT [278] ChuDeng Ltd [161] ApriveStore [128] Boshi Electronic Instrument [105] LabZhang-USA [98] Magnakoys 66% Greenals 10% Hobby Homebrew 6% Consolidated Plastics 5% Amazon.com 4% ToToT 3% ChuDeng Ltd 2% ApriveStore 1% Boshi Electronic Instrument 1% LabZhang-USA 1%

[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 ShippingExclusive Member DealsPrime VideoBuy With PrimeAmazon MusicPrime Gaming, and more.

Shop Prime Labware Caps Deals

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 April 2024?

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 114 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 $38.24, and the top brands are Pyrex, GreenHealth, Hudson Exchange, BAOSHISHAN, LabZhang, Chudeng, Ks-Tek, MEETOOT, Pastein, 20mm White Flip Off Caps 100pk, 20mm Flip Off Aluminum Caps Green, Happybrew, MagnaKoys, SANP, portURBAN, Biocomma, Globe Scientific And Wheaton. 

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 Magnakoys, Greenals, Hobby Homebrew, Consolidated Plastics, Amazon.com, ToToT, ChuDeng Ltd, ApriveStore, Boshi Electronic Instrument, LabZhang-USA, ACSPharma And Hudson Exchange. The BAOSHISHAN 100ml Hydrothermal Synthesis Autocla... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 4 consumers with an average rating of 5.0.

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.


Written By Brandi W. Cortright

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.