Best Lab Gaskets & O-Rings of 2026

Name: Nitrile Rubber O-Ring Cord - 7mm Diameter
Brand: Camthorne

Tom Law

Last Updated: 2 Feb 2026

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Lab gaskets and O-rings are essential components used in laboratory equipment to prevent leaks and ensure that experiments are carried out safely and accurately. These products are made from a range of materials, including silicone, Viton, and EPDM, which offer excellent resistance to chemicals, high temperatures, and pressure. Lab gaskets and O-rings are widely used in various laboratory applications, such as chemical processing, pharmaceuticals, and biotechnology. Proper selection and installation of these products can help to reduce the risk of equipment failure and improve the overall efficiency of laboratory operations.

At a Glance: Our Top Picks

#TOP 1

Nitrile Rubber O-Ring Cord - 7mm Diameter

9.9

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#TOP 2

sourcingmap NBR Rubber Sealing Ring 20Pcs

9.8

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#TOP 3

Sourcingmap Silicone O-Ring Pack of 10

9.6

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Top 7 Lab Gaskets & O-Rings

#TOP 1

Nitrile Rubber O-Ring Cord - 7mm Diameter

Camthorne
7mm o ring cord
Black

Nitrile Rubber O-Ring Cord - 7mm Diameter - Sold per metre - Oil, Water, Fuel Seals

The Nitrile O-Ring Cord is a versatile sealing solution that caters to a wide range of needs. Made from 70° Shore A nitrile rubber, it offers excellent resistance to water, oil, and fuel, making it ideal for various applications. With a temperature range of -30 to +100°C, you can rely on it in both cold and hot environments. This product is perfect for custom O-ring seal making, allowing you to create seals that fit your specific requirements with ease.

9.9

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What We Like

Water resistant
Oil resistant
Fuel resistant
Wide temperature range
Customisable length available

#TOP 2

sourcingmap NBR Rubber Sealing Ring 20Pcs

Uxcell
US-SA-AJD-256536

Sourcingmap 14.8mm OD 11.2mm ID 1.8mm Width Oil Resistant Sealing Ring O-Shape NBR Rubber Grommet, Black 20Pcs

The sourcingmap Rubber O Ring is designed for effective sealing in various applications. With an inner diameter of 11.2mm and a thickness of 1.8mm, it provides a reliable fit, ensuring that you can prevent leaks in your projects. Made from oil-resistant NBR rubber, these rings are durable and suitable for a range of environments. Each package contains 20 pieces, offering great value for your needs. You can trust this sealing solution to enhance the performance and longevity of your equipment.

9.8

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What We Like

Durable NBR rubber material
Effective sealing performance
Oil resistant
Value pack of 20
Suitable for various applications

#TOP 3

Sourcingmap Silicone O-Ring Pack of 10

Uxcell
a12041800ux0233

Sourcingmap Silicone O-Ring, 50mm OD, 44mm ID, 3mm Width, VMQ Seal Rings Gasket, Red, Pack of 10

The Sourcingmap O-Ring Set features a 50mm outside diameter and a 44mm inner diameter, making it ideal for various applications. With a hardness of 50 Durometer, these rings resist penetration, ensuring durability and reliability. Made from standard silicone (VMQ), the rings can withstand a wide temperature range from -22℉ (-30℃) to 392℉ (200℃), providing versatility in different conditions. This set is perfect for sealing in travel mugs, espresso machines, and more, giving you peace of mind in everyday use.

9.6

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What We Like

Durable and reliable construction
Wide temperature range
Multiple applications
Resistant to penetration

#TOP 4

sourcingmap Nitrile Rubber O-Rings Pack of 20

Uxcell
a14022100ux0144
Black
13mmx10mmx1.5mm

sourcingmap Nitrile Rubber O-Rings 13mm OD 10mm ID 1.5mm Width, Metric Sealing Gasket, Pack of 20

The sourcingmap O-Rings offer a convenient sealing solution with their precise dimensions of 13mm outer diameter and 10mm inner diameter, making them suitable for a variety of applications. With a hardness rating of 70A, they resist penetration, ensuring durability and reliability. Made from standard nitrile rubber, these O-rings can withstand temperatures ranging from -20°C to 100°C, allowing you to use them in various environments. Their versatility makes them perfect for use in pressure washers, plumbing pipes, and mechanical maintenance, providing you with peace of mind in your projects.

9.6

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What We Like

Durable nitrile rubber material
Wide temperature resistance
Versatile for multiple applications
High hardness for reliability

#TOP 5

NS-RC4NA-14 Remote Control for Insignia TVs

PERFASCIN

NS-RC4NA-14 Remote Control fit for Insignia TV NS-28ED200NA14 NS-50D400NA14 NS-19ED200NA14 NS-55E4400A14 NS-58E4400A14 NS-24E400NA14 NS-60E4400A14 NS-65E4400A14 NS-50L440NA14 NS-46D400NA14

The NS-RC4NA-14 Remote Control is designed to work seamlessly with various Insignia TV models. You will find it incredibly convenient as it requires no programming—simply install new alkaline batteries and you're ready to go. Made of durable ABS material, this remote is built to last, ensuring you have a reliable device for your entertainment needs. Furthermore, each unit undergoes 100% inspection before delivery, so you can trust in its quality.

9.4

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What We Like

No programming required
Durable ABS material
100% quality inspection
Compatible with multiple models
Easy battery installation

#TOP 6

sourcingmap Nitrile Rubber O-Rings Pack of 50

Uxcell
a12040200ux0563
Black
17mmx11mmx3mm

sourcingmap Nitrile Rubber O-Rings 17mm OD 11mm ID 3mm Width, Metric Sealing Gasket, Pack of 50

The sourcingmap O-Rings are designed with a 17mm outside diameter and an 11mm inner diameter, ensuring a perfect fit for various applications. With a hardness of 70A Durometer, these O-rings provide excellent resistance to penetration, making them durable and reliable. Made from standard Nitrile Butadiene Rubber, they can withstand temperatures ranging from -4℉ to 212℉, offering versatility for both hot and cold environments. These O-rings are widely used in pressure washers, pumps, and plumbing, ensuring effective sealing and preventing leaks, which ultimately saves you time and money.

9.2

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What We Like

Durable Nitrile rubber material
Wide temperature tolerance
Versatile applications
Excellent sealing capabilities
Pack of 50 for convenience

#TOP 7

Sanitop-Wingenroth 25464 Red O-Ring Gasket Set

Sanitop-Wingenroth
25464 9

Sanitop-Wingenroth 25464 9 O-Ring (red) Gasket Set

The Sanitop-Wingenroth 25464 Gasket Set is ideal for those needing a variety of sealing solutions. It includes 14 different sizes of O-rings, so you have the right fit for many applications. The set comes neatly organised in 16 compartments, making it easy for you to find and store each piece. Plus, the red case helps you quickly identify the set in your workspace, adding convenience and efficiency to your tasks.

9.0

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What We Like

Includes 14 O-ring sizes
Organised with 16 compartments
Distinctive red case
Versatile gasket set

Frequently Asked Questions (FAQs)

1. Are O rings and gaskets the same?

O-rings are circular, ring-shaped pieces that sit in a groove between two (usually cylindrical) parts. ... Terminology note: Any o-ring can technically be called a gasket since they prevent the transfer of liquid and air, but while o-rings are a specific shape of gasket, any gasket cannot be called an o-ring.

2. Which is better o ring or gasket?

When deciding whether a gasket or O-ring is best for your application, consider the environment and function of the seal. ... While both can withstand a wide range of temperatures, gaskets are best for extreme temperature situations. However, O-rings perform better than gaskets in applications with extreme pressure.

3. What is the role of the o ring?

The function of O rings is to seal a joining of two pieces to ensure that no air, gas or liquid can pass. Typically, they are fitted into a groove and designed to resist pressure. The resistance is what prevents air or liquid from escaping or entering the joining.

Editor's Notes

During our lab gaskets & o-ring research, we found 34 lab gaskets & o-ring products and shortlisted 7 quality products. We collected and analyzed 6,970 customer reviews through our big data system to write the lab gaskets & o-rings list. We found that most customers choose lab gaskets & o-rings with an average price of £9.03.

The lab gaskets & o-rings are available for purchase. We have researched hundreds of brands and picked the top brands of lab gaskets & o-rings, including Camthorne, Uxcell, PERFASCIN, Sanitop-Wingenroth.

Written by

Tom Law

Tom Law is an adventurer who has captured his love for nature into all of his works. A native of Newcastle, Tom has always wanted to share beautiful stories alongside the lovely sights of nature. Fortunately, he took into photography on one of his many journeys and gradually grew a passion for it. Tom Law is now an expert photographer who tours the world while creating and keeping memories of his adventures. He frequently puts his thoughts and experiences into writing.