Best Lab Filtering Flasks (April 2024) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

StonyLab Glass 500ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck...

9.8
CPR Score
Top 2

United Scientific™ FG5340-1000 Laboratory Grade Borosilicate Glass Heavy Wall...

9.7
CPR Score
Top 3

Filtering Flask, 5000mL - Heavy Walled Borosilicate Glass & Integral Barbed S...

9.6
CPR Score
Tips


Our team has analyzed 563 products of different Lab & Scientific Products brands, including Nalgene, Pyrex, QWORK, EISCO, Karter Scientific, stonylab, United Scientific Supplies, Labnique, Filtr8, TN LAB Supply, SCIENCENT WITH DEVICE, JOANLAB And Economy Glass. The following list of top 30 Lab Filtering Flasks is prepared for the customers by analyzing 563 Lab Filtering Flasks reviews and comparing different features. 

* 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 Lab Filtering Flasks Rated by CherryPicks

Market Overview
Lab Filtering Flasks Reviewed
  • Reviews Analyzed: 952 Items
  • CPR Avg. Rating: 8.5 / 10
30 Products Evaluated
  • Highest Price: $298.95
  • Lowest Price: $8.99
  • Avg. Price: $69.69
Price Disclaimer

Top 30 Lab Filtering Flasks on Amazon (Verified You can Buy)

Top 1

StonyLab Glass 500ml Heavy Wall Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation, 500ml

stonylab
US-FilterFlask-500ml-Glass-1PK
0.57 Pounds

Ratings for stonylab (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
J&D Tech 2,520

Features

Used for pressure filtration; or to increase flow rate when some concentrated solutions are slow or difficult to filter under normal pressure
Made of borosilicate glass; capacity: 500 milliliters
Show More

United Scientific™ FG5340-1000 Laboratory Grade Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 1000ml (1 Liter) Capacity

United Scientific Supplies
FG5340-1000

Ratings for United Scientific Supplies (CPR Score)

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

Features

Capacity: 1000mL (1L), Tubing size: 3/8"
Graduation Range: 400-1000mL, Graduation Intervals: 50mL
Show More
Top 3

Filtering Flask, 5000mL - Heavy Walled Borosilicate Glass & Integral Barbed Side Arm/Inlet for Vacuum Filtration - White Graduations - Buchner Flask, Erlenmeyer Flask, 5L Filter Flask - Eisco Labs

EISCO
.
10.0 x 10.0 x 16.5 Inches
4.4 Pounds

Ratings for EISCO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
hBARSCI 4,153

Features

INDUSTRIAL STRENGTH || Made of high quality, heavy duty, borosilicate 3.3 glass. Excellent strength against breakage. Designed for use in professional laboratories, but is ideal for classroom, garage and home use
5000ML CAPACITY || Flask has a 5000mL capacity and features white printed graduation lines every 500mL. Inner diameter at opening measures 52mm; use #11 stopper (not included)
Show More
Top 4

PYREX Heavy Wall Filtering Flasks with Sidearm Tubulation - Borosilicate Glass Flask – Premium Glass Chemistry Flask for Laboratory, Classroom or Home Use - PYREX Chemistry Glassware, 1L, 1/Pk

Pyrex
A5340

Ratings for Pyrex (CPR Score)

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

Features

LABORATORY FLASK: This heavy wall borosilicate glass flask with sidearm tubulation is ideal chemistry glassware for use in laboratories, schools, and for home and STEM experiments.
SAFE & DURABLE: Offering superior heat, chemical and thermal shock resistance, the flat bottom lab glassware with robust rim delivers premium strength and will not shatter easily.
Show More

1000mL Lab Vacuum Filtration Apparatus, Flask to Filter Solutions, Oils, E-Liquids, and More, 1000mL Filtering Flask and 300mL Graduated Funnel, Glass Suction Filtering Kit.

JOANLAB
1000

Ratings for JOANLAB (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Fristaden & Company, LLC -

Features

PURE SOLUTIONS: The filtering lab flask can be used to separate components or impurities in your mixtures or solutions. The filtration apparatus is built to last with tough, heat resistant borosilicate glass designed to handle boiling liquids and strong vacuums.
FAST FILTERING ACTION: The filtering and distillation kit can be used with or without a vacuum. For faster, higher volume jobs, just hook up a vacuum hose to the filtering flask and quickly pull your solution through the funnel. A lab vacuum filtration apparatus allows you to filter oil and water soluble solutions without damaging or losing heat-sensitive compounds in a distillation. This filtering flask comes with a high quality rubber stopper and aluminum clamp that allow for strong vacuums.
Show More
Top 6

QWORK 250ml Borosilicate Glass Filtering Flask

QWORK
0.5 Pounds

Ratings for QWORK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
QWORK 1,047

Features

1
Top 7

Nalgene DS4101-2000 Polypropylene 2000mL Filtering Flask with Angled Tubulation

Nalgene
F3900-3
12.5 x 8.75 x 7.25 Inches
0.97 Pounds

Ratings for Nalgene (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Lab Genome -
Medix Corp. -

Features

Capacity: 1700ml; fits tubing I.D.: 1/4 to 3/8 inch (9.5mm); stopper number: 10
Material: polypropylene
Show More
Top 8

Buchner Filtering Flask, 500ml - Socket Size 24/29 - Interchangeable Joint - Side Arm - Borosilicate Glass - Eisco Labs

EISCO
CH0422D
0.5 Pounds

Ratings for EISCO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
hBARSCI 4,153

Features

Made of high quality, heavy duty Borosilicate glass
500ml capacity
Show More
Top 9

United Scientific FG5340-500 Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 500ml Capacity

United Scientific Supplies
FG5340-500

Ratings for United Scientific Supplies (CPR Score)

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

Features

Made of high quality borosilicate glass
Graduations printed in durable white enamel
Show More
Top 10

Filtering Flask, 500ml - Borosilicate Glass - Conical Shape, with Integral Side Arm - White Graduations - Eisco Labs

EISCO
CH0420C
4.25 x 4.25 x 7.0 Inches
0.9 Pounds

Ratings for EISCO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
hBARSCI 4,153

Features

Made of high quality Borosilicate glass
Conical shape for spill prevention
Show More
Top 11

United Scientific FG5340-2000 Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 2000ml Capacity

United Scientific Supplies
FG5340-2000
2.2 Pounds

Ratings for United Scientific Supplies (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Scientific Systems -
Thomas Scientific -

Features

Country Of Origin: United States
Model Number: FG5340-2000
Show More
Top 12

Filtering Flask, 250mL - Borosilicate Glass - Conical Shape, with Integral Side Arm - White Graduations - Eisco Labs

Economy Glass
FL2402-1
12.0 x 6.0 x 5.0 inches
0.4 Pounds

Ratings for Economy Glass (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
hBARSCI 4,153

Features

250mL CAPACITY || 250mL capacity and easy-to-read white enamel graduations every 50mL
INTEGRAL SIDE ARM || Conical flask with tubulated integral side arm adaptable to 3/8" internal diameter tubing
Show More
Top 13

Filtering Flask, 1000ml - Borosilicate Glass - Conical Shape, with Integral Side Arm - White Graduations - Eisco Labs

EISCO
CH0420D
12.0 x 8.0 x 6.0 Inches
1.3 Pounds

Ratings for EISCO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
hBARSCI 4,153

Features

1000ml conical filtering flask made from Borosilicate Glass
Integral Side Arm measures 14.2mm long with an inner diameter of 4.6mm and an outer diameter of 8.5mm
Show More
Top 14

Glass Filtering Flask with Upper Tubulation, 1000ml

Labnique
1431T-1000-1

Ratings for Labnique (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Labnique -

Features

1000ml Glass Filtering Flask with Upper Tubulation.
High quality borosilicate 3.3 glass.
Show More
Top 15

Glass Filtering Flask with Upper Tubulation, 500ml (Single)

Labnique
1431T-500-1

Ratings for Labnique (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Labnique -

Features

500ml Glass Filtering Flask with Upper Tubulation.
High quality borosilicate 3.3 glass.
Show More
Top 16

Glass Filtering Flask with Upper Tubulation, 2000ml

Labnique
1431T-2000-1

Ratings for Labnique (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Labnique -

Features

2000ml Glass Filtering Flask with Upper Tubulation.
High quality borosilicate 3.3 glass.
Show More
Top 17

Buchner Filtering Flask, 500ml - Polypropylene - with Angled Side Arm - Eisco Labs

EISCO
CH0423A
4.25 x 4.25 x 7.0 Inches

Ratings for EISCO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
hBARSCI 4,153

Features

Made of high quality, chemical resistant polypropylene
500ml capacity. Ungraduated
Show More
Top 18

Filtering Flask, 2000ml - Borosilicate Glass - Conical Shape, with Integral Side Arm - White Graduations - Eisco Labs

EISCO
CH0420E
2.1 Pounds

Ratings for EISCO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
hBARSCI 4,153

Features

Made of high quality borosilicate glass
Conical shape for spill prevention
Show More
Top 19

United Scientific Supplies FFB5340-10000 Borosilicate Glass Filtering Bottle/Flask, 10000 ml Capacity

United Scientific Supplies

Ratings for United Scientific Supplies (CPR Score)

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

Features

Enables this flask to withstand vacuum filtration without imploding
Neck size fits a #13. 5 rubber stopper
Show More
Top 20

Filtering Flask, 100ml - Integral Side Arm - White Graduations - Borosilicate Glass - Eisco Labs

EISCO
2.75 x 2.75 x 4.25 Inches
0.2 Pounds

Ratings for EISCO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
hBARSCI 4,153

Features

Made of high quality, heavy duty, Borosilicate 3.3 glass
100ml capacity. White graduations
Show More
Top 21

StonyLab 2-Pack 250ml Borosilicate Glass Filtering Flask, Bolt Neck with Tubulation

stonylab
US-FilterFlask-250ml-Glass-2PK

Ratings for stonylab (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
J&D Tech 2,520

Features

Used for pressure filtration; or to increase flow rate when some concentrated solutions are slow or difficult to filter under normal pressure
Made of borosilicate glass; Capacity: 250 ml
Show More
Top 22

United Scientific Supplies FLTKIT Filtering Kit

United Scientific Supplies
1188H04EA
2.65 Pounds

Ratings for United Scientific Supplies (CPR Score)

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

Features

500ml filtering flask
90mm porcelain buchner funnel. The 100 mm on the side of the funnel is the outer diameter.The inner diameter is 90 mm.
Show More
Top 23

TN Lab Filter Flask Borosilicate Glass Vacuum Flask 3,000ml 3L

TN LAB Supply

Ratings for TN LAB Supply (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TN LAB Supply -

Features

Filter Flask 3000ml 3L
Ultra Heavy-Wall Borosilicate Glass
Show More
Top 24

500ml Filtering Flask, Bolt Neck with Tubulation, 3.3 Borosilicate, Heavy Wall, Karter Scientific (Single)

Karter Scientific
250N2

Ratings for Karter Scientific (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Lake Charles Manufacturing -

Features

Capacity: 500ml
Graduations:
Show More
Top 25

500ml Filter Flask Glass Filtering Flask Heavy Wall Graduated Super Thick and Bolt Neck with Tubulation

SCIENCENT WITH DEVICE
FLTFLSK500

Ratings for SCIENCENT WITH DEVICE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Sciencent -

Features

Capacity: 500ml, the medium and adequate ideal one-size-does-it-allflask size
Super Thick and satisfyingly smooth glass flask made with precision
Show More
Top 26

United Scientific™ FG5340-5000 Laboratory Grade Borosilicate Glass Heavy Wall Filtering Flask, Bolt Neck with Tubulation, 5000mL (5L) Capacity

United Scientific Supplies
FG5340-5000

Ratings for United Scientific Supplies (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Scientific Systems -
Thomas Scientific -
A.B.Sales -

Features

Capacity 5000mL (5L). Tubing Size: 1/2". Recommended Stopper Size: 13
Graduation Range: 1500-5000mL. Graduation Interval: 500mL
Show More
Top 27

Filtr8 500ml Lab Filtration Kit with Pump

Filtr8

Ratings for Filtr8 (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Motobriiz LLC -
Top 28

TN Lab Filter Flask Borosilicate Glass Vacuum Flask 5,000ml 5L

TN LAB Supply

Ratings for TN LAB Supply (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
TN LAB Supply -

Features

Big Filter Flask 5000ml 5L
Heavy-Wall Borosilicate Glass
Show More
Top 29

Sciencent 1000ml Buchner Filter Flask Glass Filtering Flask Heavy Wall Graduated - Bolt Neck with Tubulation

SCIENCENT WITH DEVICE
FLTFLSK250

Ratings for SCIENCENT WITH DEVICE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Sciencent -

Features

Capacity: 1000ml, the Large and adequate ideal flask size for bigger and wilder projects.
Super Thick and satisfyingly smooth glass flask made with precision
Show More
Top 30

250ml Filter Flask Glass Filtering Flask Heavy Wall Graduated Super Thick and Bolt Neck with Tubulation

SCIENCENT WITH DEVICE
FLTFLSK250

Ratings for SCIENCENT WITH DEVICE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Sciencent -

Features

Capacity: 250ml, the small and adequate ideal flask size
Super Thick and satisfyingly smooth glass flask made with precision
Show More

Top 10 Lab Filtering Flasks - Verified to Buy (Apr. 2024)

Top 10 Lab Filtering Flasks Brands on Amazon

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

  • stonylab
  • United Scientific Supplies
  • EISCO
  • Pyrex
  • JOANLAB
  • QWORK
  • Nalgene
  • Economy Glass
  • Labnique
  • TN LAB Supply

Top 10 Lab Filtering Flasks 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
🥇 QWORK 3,077 4.9
🥈 J&D Tech 1,726 4.9
🥉 hBARSCI 1,193 4.8
4 Lake Charles Manufacturing 560 4.9
5 Amazon.com 385 4.7
6 Thomas Scientific 130 4.5
7 Motobriiz LLC 123 4.6
8 Sciencent 26 4.7
9 Labnique 25 4.8
10 PYREX Glass - Labware 24 5.0
View or download top Lab Filtering Flasks seller & rating report
QWORK [3077] J&D Tech [1726] hBARSCI [1193] Lake Charles Manufacturing [560] Amazon.com [385] Thomas Scientific [130] Motobriiz LLC [123] Sciencent [26] Labnique [25] PYREX Glass - Labware [24] QWORK 42% J&D Tech 24% hBARSCI 16% Lake Charles Manufacturing 8% Amazon.com 5% Thomas Scientific 2% Motobriiz LLC 2% Sciencent 0% Labnique 0% PYREX Glass - Labware 0%

[Get] Lab Filtering Flasks 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 Lab Filtering Flasks 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 Lab Filtering Flasks to buy for new April 2024?

CherryPicks’s Methodology for Evaluating Lab Filtering Flasks

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 563 of Lab Filtering Flasks reviews based on our selection criteria. It helped us shortlist the top qualified and rated Lab Filtering Flasks for Lab & Scientific Products, We found that most customers choose Lab Filtering Flasks with an average price of $69.69, and the top brands are Nalgene, Pyrex, QWORK, EISCO, Karter Scientific, stonylab, United Scientific Supplies, Labnique, Filtr8, TN LAB Supply, SCIENCENT WITH DEVICE, JOANLAB And Economy Glass. 

Then our expert-level editors reviewed all those quality items and selected the top 30 Lab Filtering Flasks for you, We have researched hundreds of sellers and picked the top sellers for Lab & Scientific Products, including QWORK, J&D Tech, hBARSCI, Lake Charles Manufacturing, Amazon.com, Thomas Scientific, Motobriiz LLC, Sciencent, Labnique, PYREX Glass - Labware, Fristaden & Company, LLC And Scientific Systems. The StonyLab Glass 500ml Heavy Wall Borosilicate Gl... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 273 consumers with an average rating of 4.6.

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 Lab Filtering Flasks to buy.


Written By Thomas Joseph

Thomas Joseph has over 7 years of working experience with a reputation science laboratory. He is a father, a writer, and a pet lover. He would be sharing his expert knowledge on Industrial and scientific equipment to help us make the right purchase.