Best Lab Reaction Kettle Flasks of 2026

Brian Howie Avatar
Brian Howie
Last Updated: Jan 8, 2026

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Lab Reaction Kettle Flasks are essential tools used in scientific laboratories for various chemical reactions and experiments. These flasks are designed to withstand high temperatures and pressure, making them suitable for a wide range of applications. Made from durable borosilicate glass or other chemically resistant materials, these reaction kettle flasks are ideal for mixing, heating, and cooling different substances. They are available in various sizes and shapes, including round-bottom and flat-bottom options, to accommodate different experimental needs. With their reliable performance and sturdy construction, Lab Reaction Kettle Flasks are a crucial asset for any laboratory setting.

At a Glance: Our Top Picks

VEVOR Jacketed Reactor 5L Cover #TOP 1
VEVOR Jacketed Reactor 5L
ftb score rating icon 9.8
LIECARYAM 3000ml Jacketed Glass Reactor Cover #TOP 2
LIECARYAM 3000ml Jacketed Glass Reactor
ftb score rating icon 9.7
Deschem 24/40 Borosilicate Glass 4-Neck Reactor Cover #TOP 3
Deschem 24/40 Borosilicate Glass 4-Neck Reactor
ftb score rating icon 9.5

Top 10 Lab Reaction Kettle Flasks

#TOP 1

VEVOR Jacketed Reactor 5L

ab001
VEVOR Jacketed Reactor 5L Cover
VEVOR Jacketed Reactor 5L Laboratory Glass Reactor, Jacketed Glass Reactor, Chemical Reaction Vessel, Lab Jacketed Reactor, Reaction Vessel Chemistry, with Digital Display, for Reaction Distillation

The VEVOR Jacketed Reactor is a premium laboratory glass reactor designed for chemical reactions, distillation, and mixing in the chemical and pharmaceutical industries. Made from high-quality borosilicate glass and stainless steel, this reactor is compact, sturdy, and resistant to strong acids and alkalis. It features a precise digital display for easy temperature measurement, with a temperature range of -60 °C to 200 °C. The variable speed motor ensures long-running time, stability, and noise-free operation. The PTFE component seal provides durability and air-tightness, with an easy-to-clean discharge valve. With its 5-liter capacity and the ability to operate under full vacuum, the VEVOR Jacketed Reactor is a versatile and reliable tool for various laboratory applications.

What We Like
Premium Material
Precise Digital Screens
Variable Speed Motor
#TOP 2

LIECARYAM 3000ml Jacketed Glass Reactor

Lab 63-1530
LIECARYAM 3000ml Jacketed Glass Reactor Cover
LIECARYAM 3000ml Lab Jacketed Glass Reactor, 3L Double-Layer Chemical Reaction Vessel for Reaction Distillation Equipment 51.18In Laboratory Jacketed Reactor Lab Reaction w/Digital Display 680r/min

The LIECARYAM Glass Reactor offers precise speed control with its digital display and stepless frequency adjustment, allowing you to work safely and continuously without sparks or brushes. Made from GG17 high borosilicate glass, this reactor is durable and resistant to chemical reactions, giving you reliable performance. Its design also supports easy assembly with optional reflux and distillation devices, making your lab work more flexible. Additionally, the reactor uses a glass interlayer for circulating hot oil or cold liquids, enabling efficient heating or cooling during reactions to meet different experimental needs.

What We Like
Digital speed control
Durable borosilicate glass
Flexible assembly options
Efficient heating and cooling
#TOP 3

Deschem 24/40 Borosilicate Glass 4-Neck Reactor

TXFYQTX2440PD4K1000ml
1000ml
Deschem 24/40 Borosilicate Glass 4-Neck Reactor Cover
Deschem 24/40 Glass Cylindrical Reactor 4-Neck Flat Bottom Lab Reaction Vessel Four Necks W/Lid and Clamp

The Deschem Glass 4-Neck Reactor is crafted from durable borosilicate glass, known for its excellent resistance to thermal shock, which means you can safely use it in various heating and cooling processes. Its high annealing point of 560℃ allows the glass to withstand significant temperature changes without cracking, giving you confidence during intense reactions. The reactor also features a low expansion rate, helping to maintain its shape and integrity as temperatures fluctuate. Additionally, the softening point of 820℃ ensures the glass remains stable and reliable under high heat, making it a dependable choice for your lab work.

What We Like
Borosilicate glass durability
High annealing point
Low thermal expansion
High softening point
#TOP 4

StonyLab Borosilicate Glass Reaction Flask 500ml

Flask-PTFE-STC-1Neck-24/40-500ml
500 ml
StonyLab Borosilicate Glass Reaction Flask 500ml Cover
Stonylab Reaction Flask - Borosilicate Glass Single-Neck Flask with 24/40 Joint and PTFE Stopcock Valve, Round Bottom, 500 ml

The StonyLab Reaction Flask is designed to support a variety of chemical reactions, whether you're working with inert gases or simply in the open air. This flexibility makes it a useful tool for many lab experiments. It includes a PTFE stopcock valve, which lets you easily add or remove gases during your reaction, giving you better control over the process. Made from durable borosilicate glass with a PTFE piston, it’s built to last and resist heat and chemicals. Plus, its 24/40 joint and hose connection fit perfectly with other StonyLab glassware, helping you build a smooth and efficient lab setup.

What We Like
Versatile reaction use
PTFE stopcock valve
Borosilicate glass build
Compatible 24/40 joint
Seamless glassware integration
#TOP 5

Corning Pyrex Borosilicate Glass Four-Neck Reaction Kettle Flask 2000ml

6947-2L
Multicolor
2000ml Capacity
Corning Pyrex Borosilicate Glass Four-Neck Reaction Kettle Flask 2000ml Cover
Corning Pyrex Borosilicate Glass Cylindrical Resin Reaction Kettles Flask with Covers, Four-Neck Standard Taper Joints, 2000ml Capacity

The Pyrex Four-Neck Reaction Flask is designed to provide you with durability and safety during your lab work. Its wide mouth makes it easy for you to reach inside and clean the flask thoroughly, saving you time and effort. The flask comes with a sturdy, heavy-pressed cover that ensures a secure fit, keeping your reactions contained and safe. Additionally, the lower part of the flask is mold-blown to resist mechanical damage, so you can rely on it to withstand everyday use without breaking easily. This flask is a practical choice for anyone needing a reliable and safe reaction vessel.

What We Like
Durability and safety
Wide mouth for easy cleaning
Heavy-pressed sturdy cover
Mold-blown break resistance
#TOP 6

DONLAB REA-0037 1L 3-Neck Reaction Kettle Flask

REA-0037
3 Necks(#24)
1000ml/1L
DONLAB REA-0037 1L 3-Neck Reaction Kettle Flask Cover
DONLAB REA-0037 1000ml/1L Cylindrical Reaction Kettle Flask with Covers,3-Neck 24/40 Center - 24/40 Side Neck

The DONLAB 3-Neck Reaction Flask offers a 1000 ml capacity, making it ideal for handling moderate volumes in your lab work. It features three necks with standard 24/40 ground glass joints, allowing you to easily attach different accessories or instruments for versatile experiments. The flat flange on both the reaction lid and the flask measures 15 cm in outer diameter, providing a stable and secure sealing surface. Additionally, the thick flange edges, about 9mm, add durability and ensure a tight fit. Made from borosilicate 3.3 glass with a heavy wall design, this flask is built to withstand temperature changes and chemical exposure, giving you reliable performance.

What We Like
1000 ml capacity
Three 24/40 ground glass joints
15 cm flat flange diameter
Thick 9mm flange edge
Borosilicate 3.3 heavy wall glass
#TOP 7

Pyrex Borosilicate Glass Cylindrical Resin Reaction Kettles Flask

6947-1L
Multicolor
1000ml Capacity
Pyrex Borosilicate Glass Cylindrical Resin Reaction Kettles Flask Cover
Corning Pyrex Borosilicate Glass Cylindrical Resin Reaction Kettles Flask with Covers, Four-Neck Standard Taper Joints, 1000ml Capacity

The Pyrex Borosilicate Glass Cylindrical Resin Reaction Kettles Flask, also known as the Pyrex Resin Reaction Kettles Flask, is designed for long life and maximum safety. With its wide mouth, you can easily access the interior for cleaning, making maintenance a breeze. The heavy-pressed construction of the cover ensures durability, while the mold-blown lower sections provide maximum resistance to mechanical breakage. Moreover, this flask comes in a broad range of sizes to suit your needs. Whether you are a professional in a lab or a hobbyist, the Pyrex Resin Reaction Kettles Flask offers convenience and peace of mind, allowing you to focus on your experiments and work with confidence.

What We Like
Long-lasting
Easy to clean
Durable construction
#TOP 8

Deschem 24/40 Borosilicate Glass 4-Neck Reactor

TXFYQTX2440PD4K2000ml
2000ml
Deschem 24/40 Borosilicate Glass 4-Neck Reactor Cover
Deschem 24/40 Glass Cylindrical Reactor 4-Neck Flat Bottom Lab Reaction Vessel Four Necks W/Lid and Clamp

The Deschem 4-Neck Glass Reactor is crafted from borosilicate glass, known for its excellent durability and resistance to thermal shock, making it ideal for lab use. Its annealing point of 560℃ means the glass is heat-treated to relieve internal stresses, ensuring it won't easily crack under temperature changes. With a low expansion rate of 32×10⁻⁷/℃, the reactor maintains stability during heating and cooling, so you can rely on consistent results. Plus, its softening point at 820℃ allows it to withstand high temperatures without deforming, giving you confidence during intense reactions.

What We Like
Borosilicate glass durability
High annealing temperature
Low thermal expansion
High softening point
#TOP 9

EQCOTWEA 5L Glass Reaction Kettle

TP220535
EQCOTWEA 5L Glass Reaction Kettle Cover
EQCOTWEA 5L Single-Layer Glass Reaction Kettle, Lab Borosilicate Glass Jacketed Reactor, 304 Stainless Steel Chemical Reaction Vessel, Stepless Speed Regulation for Stirring Distillation & Mixing

The EQCOTWEA Glass Reactor offers high performance with its durable 5L borosilicate glass construction, enabling you to conduct various chemical reactions safely. Its stepless speed regulation allows you to adjust the stirring speed precisely for different applications, making your experiments more efficient. With high-precision sealing using PTFE and rubber materials, you can achieve a high vacuum and work with various solvents without worry. Additionally, the intelligent electric heating sleeve ensures fast and even heating, providing optimal temperature control for your reactions. This combination of features makes the reactor user-friendly and reliable for both experiments and production.

What We Like
High temperature resistance
Variable speed control
Excellent sealing capability
Fast, uniform heating
#TOP 10

Deschem 25ml Jacketed Borosilicate Glass Flask

JTSP25ML2440N1
Clear
Deschem 25ml Jacketed Borosilicate Glass Flask Cover
Deschem 25ml,24/40,Single Neck,Jacket Glass Flask,Reaction Vessel,Lab Reactor

The Deschem Jacketed Glass Flask is crafted from high-quality G3.3 borosilicate glass, which is known for its durability and resistance to thermal shock. This means you can use it safely for heating and cooling processes without worrying about cracks. The flask can withstand temperatures up to 560°C before annealing, offering stability during high-temperature reactions. Its low expansion rate ensures minimal size change when heated, helping you maintain precise measurements. Additionally, the softening point of 820°C means the flask remains strong and intact under intense heat. This makes the Deschem Jacketed Glass Flask a reliable choice for your lab reactions and experiments.

What We Like
Durable borosilicate glass
High thermal resistance
Low thermal expansion
High softening point
Buying Guide Image
Editor's Notes

During our lab reaction kettle flask research, we found 24 lab reaction kettle flask products and shortlisted 10 quality products. We collected and analyzed 2,078 customer reviews through our big data system to write the lab reaction kettle flasks list. We found that most customers choose lab reaction kettle flasks with an average price of $369.80.

The lab reaction kettle flasks are available for purchase. We have researched hundreds of brands and picked the top brands of lab reaction kettle flasks, including VEVOR, LIECARYAM, Deschem, stonylab, Pyrex. The seller of top 1 product has received honest feedback from 460 consumers with an average rating of 4.2.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.