Best Stonylab Lab Boiling Flasks in 2026

Daisy
Last Updated: Feb 8, 2026

At a Glance: Our Top Picks for Stonylab Lab Boiling Flasks

Boiling Flask, 1000ml - Borosilicate Glass - Flat Bottom, Narrow Neck - Eisco Labs
#TOP1
Boiling Flask, 1000Ml - Borosilicate Glass - Flat
5.5
PM SCORE
Boiling Flask, 50ml - Borosilicate Glass - Flat Bottom, Narrow Neck - Eisco Labs
#TOP2
Boiling Flask, 50Ml - Borosilicate Glass - Flat
5.5
PM SCORE
Boiling Flask, 50ml - Borosilicate Glass - Round Bottom, Wide Neck, Beaded Rim - Eisco Labs
#TOP3
Boiling Flask, 50Ml - Borosilicate Glass - Round
5.3
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Stonylab Lab Boiling Flasks of 2026

Boiling Flask, 1000Ml - Borosilicate Glass - Flat Bottom, Narrow Neck - Eisco Labs

EISCO
CH0410G
8.00 X 8.00 X 8.00 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90

Features

Flask made of heavy duty borosilicate glass.

1000ml Capacity

Narrow neck

Stopper not included

Boiling Flask, 50Ml - Borosilicate Glass - Flat Bottom, Narrow Neck - Eisco Labs

EISCO
CH0410B
6.00 X 4.00 X 4.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90

Features

Flask made of heavy duty borosilicate glass.

50ml Capacity

Long neck

Stopper not included

Boiling Flask, 50Ml - Borosilicate Glass - Round Bottom, Wide Neck, Beaded Rim - Eisco Labs

EISCO
CH0403A
2.00 X 2.00 X 4.00 Inches
0.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90

Features

50mL round bottom, wide neck boiling flask made of lab-grade borosilicate 3.3 glass

Inside diameter of mouth is 1-1/8"

Diameter of flask bulb is 2"

Thick beaded rim

Used to hold liquid for heating/boiling or distillation

Boiling Flask, 500Ml - Borosilicate Glass - Round Bottom, Narrow Neck (1.1" Id) - Eisco Labs

EISCO
CH0402F
0.40 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90

Features

Made of high quality, heavy duty Borosilicate glass

500ml capacity. Narrow neck, round bottom, beaded rim.

6.75" tall, 4" bottom diameter

2.75" neck length, 1.1" neck diameter

Perfect for any science or home laboratory

Kjeldahl Flask, 800Ml - Long Neck, Round Bottom - Borosilicate Glass - Eisco Labs

EISCO
CH0438D
4.20 X 4.20 X 13.80 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90

Features

Designed for nitrogen determination as per Kjeldahl method

Made of high quality Borosilicate glass

800mL capacity

Rounded Base

Conforms to DIN ISO 12360 standard

Florence Boiling Flask, 500Ml - 19/26 Joint, Interchangeable - Borosilicate Glass - Flat Bottom, Short Neck - Eisco Labs

EISCO
CH0412I01
4.00 X 4.00 X 6.00 Inches
0.40 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90

Features

Made of high quality, heavy duty, 3.3 borosilicate glass

500ml capacity

Stands 6" tall, and is 4" in diameter at its widest point

Single joint with 19/46 size socket

Perfect for any science or home laboratory

Florence Boiling Flask, 10,000Ml - Flat Bottom, Narrow Neck, Beaded Rim - Borosilicate Glass - Eisco Labs

EISCO
CH0410L
11.50 X 11.50 X 14.25 Inches
3.90 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
hBARSCI 9.90

Features

INDUSTRIAL QUALITY || 10,000ml Boiling Flask made of high quality, heavy duty, Borosilicate 3.3 glass. Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks

NARROW NECK || Flask features a narrow neck. Neck measures 4" in total length and has an inner diameter of 1.7" (44mm) and an outer diameter of 2.1" (54mm)

14.25 INCHES TALL || Flask stands 14.25" tall and is 11.5" in diameter at it's widest point

FLAT BOTTOM || Flask features a flat base for added stability and allows it to sit on level surfaces

GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD || Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use

Top 10 lab boiling flasks Brands on Amazon

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

Brand Count
Eisco 7

Top 10 lab boiling flasks Brands Pie Chart


We've carried out a comprehensive analysis of 48 reviews on lab boiling flasks, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select lab boiling flasks priced around $37.42, with top brands including bonvoisin, usa lab, stonylab, karter scientific, qwork, eisco and laboy and labvida

Our team of expert editors reviewed these high-quality items and handpicked the top 7 lab boiling flasks for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include bonvoisin us, usa lab, j&d tech, lake charles manufacturing, qwork, hbarsci and laboyglass and invotest .

We are dedicated to assisting our users in finding the right flasks Products based on their needs, saving them considerable time when choosing which lab boiling flasks to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.