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Best boiling flasks - September 2025

Last Updated - September 11, 2025

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Deschem

5L 24/40 Round Bottom Glass Flask 1-Neck 5000ml Lab Chemistry Single Neck Boiling Bottle Reaction Vessel

Deschem

$104.99

More Details
Main highlights
- Softening Point------820℃
- Round Bottom
- Linear Coefficient of Expansion------ 32×10-7/℃
- Be Made From G3.3 Borosilicate Glass
- Annealing Point ------560℃
- 24/40 Ground Joint
$104.99
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

CS Labglass

[5 Pack] CS Labglass 100ml Single Neck Round Bottom Flask with 24/40 Standard Taper Outer Joint, Borosilicate Glass Boiling Flask, Lab Glassware

CS Labglass

$49.99

More Details
Main highlights
- The single neck round bottom flask is widely used in organic chemistry, in distillation, or vacuum distillation apparatus.
- Single neck round bottom flasks are made of high quality borosilicate glass, heavy glass wall, durable and reusable.
- Round bottom design allows for uniform heating and mixing of the contents inside the flask, improve work efficiency and guarantee security.
- Package includes: 5 Pack 100ml round bottom boiling flasks.
- 100ml, Single neck boiling flask with 24/40 standard outer joint.
$49.99
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

TN LAB Supply

TN Lab Flat Bottom Boiling Flask 5-Piece Set 50-100-250-500-1000ml

TN LAB Supply

$49.95

More Details
Main highlights
- Manufactured to ISO: 9001 Standards, CE Certification
- Heavy-Wall Borosilicate 3.3 Glass
- Designed with a narrow neck, making it easier to swirl liquids without spilling
- 50ml, 100ml, 250ml, 500ml, 1000ml Glass Boiling Flask with Flat Bottom made from Borosilicate in the Florence flask shape.
$49.95
4

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Labvida

Labvida 2pcs of Glass Boiling Flasks of Flat Bottom, Vol.500ml, Borosilicate 3.3 Glass, LVD002

Labvida

$22.99

More Details
Main highlights
- Volume: 500ml (17oz)
- Shape: Geometry permits very uniform heating, Uniform wall thickness is suited for heating
- Material: Made of high quality 3.3 Borosilicate glass to prevent cracking
- Boiling Flask is used in laboratory for more prolonged boiling of liquids
- Appearance: Flat Bottom that can be set on a surface, short neck, without graduation
$22.99
5
Best Value

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

ULAB

ULAB Boiling Flask of Flat Bottom Set, 2 Sizes 250ml 500ml, Borosilicate 3.3 Glass Material, UBF1007

ULAB

$20.99

More Details
Main highlights
- Uniform wall thickness is suited for heating, geometry permits very uniform heating
- Flat Bottom and short neck, without graduation
- Each 1pc of 250ml (8.45oz) and 500ml (17oz) Boiling Flasks
- Borosilicate 3.3 glass material to prevent cracking
- Boiling Flask is used in laboratory for more prolonged boiling of liquids
$20.99

Best boiling flasks - September 2025

5L 24/40 Round Bottom Glass Flask 1-Neck 5000ml Lab Chemistry Single Neck Boiling Bottle Reaction Vessel

[5 Pack] CS Labglass 100ml Single Neck Round Bottom Flask with 24/40 Standard Taper Outer Joint, Borosilicate Glass Boiling Flask, Lab Glassware

TN Lab Flat Bottom Boiling Flask 5-Piece Set 50-100-250-500-1000ml

Labvida 2pcs of Glass Boiling Flasks of Flat Bottom, Vol.500ml, Borosilicate 3.3 Glass, LVD002

ULAB Boiling Flask of Flat Bottom Set, 2 Sizes 250ml 500ml, Borosilicate 3.3 Glass Material, UBF1007

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