225-Piece Black Rubber O-Ring Assortment Kit

Never get caught mid-repair without the right seal again. This comprehensive 225-piece rubber O-ring assortment kit gives you a wide range of metric sizes in one organized set — perfect for plumbing repairs, automotive maintenance, and general mechanical projects around the home or workshop.

Why You'll Love This Kit

Wide Application: Engineered for use across numerous industries — from plumbing and automotive to food processing equipment, marine applications, and general mechanical accessories.
Premium Black Rubber Material: Each O-ring is crafted from high-quality black rubber, delivering excellent elasticity, compression resistance, and long-lasting sealing performance.
225 Pieces in Assorted Metric Sizes: Includes a broad selection of common metric dimensions, such as:
- 3mm × 1mm (approx. 0.12" × 0.04")
- 8mm × 2mm (approx. 0.31" × 0.08")
- 18mm × 4mm (approx. 0.71" × 0.16")
- 22mm × 2mm (approx. 0.87" × 0.08")
- …and many more sizes in between!
Organized for Quick Access: Each size is separated and clearly organized so you spend less time searching and more time fixing.
Leak-Proof Sealing: Precisely manufactured to create secure, reliable seals that maintain system integrity and help prevent frustrating leaks.
Convenient OPP Packaging: The practical, compact packaging makes it easy to store in your toolbox, workshop shelf, or vehicle glovebox.

Ideal Uses

Household plumbing repairs (faucets, pipes, valves)
Automotive and motorcycle maintenance
Marine and boat engine sealing
Food processing and industrial equipment
General mechanical and DIY repair projects

Package Contents

1 × 225-Piece Rubber O-Ring Assortment Kit (multiple metric sizes)

Made in Mainland China.

Helpful Resources & Related Products

For guidance on safe use of sealing components and chemical exposure standards in the workplace, visit the OSHA Chemical Hazards page.

Looking for more repair and DIY essentials? Check out these related products from our store:

Frequently Asked Questions

Q: What sizes are included in the 225-piece rubber O-ring assortment kit?

A: The kit includes a wide range of common metric sizes, including 3mm × 1mm, 8mm × 2mm, 18mm × 4mm, and 22mm × 2mm, among many others. The sizes cover most standard plumbing, automotive, and mechanical sealing needs.

Q: What material are these O-rings made from?

A: These O-rings are made from high-quality black rubber, which provides excellent elasticity, compression set resistance, and reliable sealing performance across a variety of applications and operating conditions.

Q: Can I use these O-rings for plumbing and automotive repairs?

A: Yes! This assortment kit is specifically designed for wide application use, making it suitable for household plumbing (faucets, valves, pipes), automotive and motorcycle maintenance, marine sealing, and general DIY repair projects.

Q: How are the O-rings organized in the kit?

A: The 225 O-rings are sorted by size into individual compartments or bags, making it easy to quickly find the exact size you need without rummaging through a mixed pile. This keeps your workspace tidy and minimizes repair downtime.

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.