10 Best O-Rings 2025

Looking for the best O-rings for your sealing needs? Look no further than our Top 10 Product Reviews page! We've scoured the market and reviewed a wide range of products in the O-ring category, with scores ranging from 7.8 to an impressive 9.7. Our top pick? The C&D Valve CD2245 1/4 flare cap, a round brass cap with a neoprene O-ring seal that comes in a convenient pack of 25. With its high score and durable construction, this O-ring is sure to meet all your sealing needs. So why settle for less? Check out our top 10 list today and find the perfect O-ring for your project!

By Jonathan Levi

Fact Checked

Updated on October 19, 2025 6:10 PM

product

bestseller

9.8

012 Viton O-Ring, 75A Durometer, Black, 3/8" ID, 1/2" OD, 1/16" Width (Pack of 100) 012 0.364 Inches 1/2 Inches 0.07 Inches 0.364 Inches 1/2 Inches 0.07 inches 100

Mr O-Ring

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product

9.5

15% OFF

TWCC 32 Size 1440 Pcs O Rings Assortment Kits Metric Nitrile NBR Rubber Washer with Pick and Hook Set for Car Faucet Pressure Plumbing Repair,Air or Gas Sealing Connections,OD 4mm-50mm

TWCC

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product

9.3

17% OFF

KEZE 233 Pcs Plumbing and Faucet Washers Assortment Kit for Assorted Spigot Water Hose Bib Outside Garden Faucet Splitter Gasket Leak Plumbes Valve Stem Worn Out Repair Faucet Washers and Plumbing Washers

Keze

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product

8.9

O Ring Kit, 950 Pcs Rubber O-Ring Assortment Kit, Plusmart 20 Sizes Washer Gasket Set for Pressure Washer, Plumbing Sealing Repair, Air or Gas Connections, Resist Oil and Heat 3/64" ~ 63/64" 950pcs

Plusmart

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product

8.4

27% OFF

770pcs Rubber O Ring Assortment Kits 18 Sizes Sealing Gasket Washers Made of NBR by HongWay for Car Auto Vehicle Repair, Professional Plumbing, Air or Gas Connections

HongWay

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product

8.2

020 Buna-N O-Ring, 50A Durometer, Round, Black, 7/8" ID, 1" OD, 1/16" Width (Pack of 60) 020 0.864 Inches 1 Inches 0.07 Inches 0.864 Inches 1 Inches 0.07 inches 60

Small Parts

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product

8.1

214 Buna-N O-Ring, 90A Durometer, Round, Black, 1" ID, 1-1/4" OD, 1/8" Width (Pack of 50) 214 0.984 Inches 1-1/4 Inches 0.139 Inches 0.984 Inches 1-1/4 Inches 0.139 inches 50

Mr O-Ring

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product

7.7

uxcell Nitrile Rubber O-Rings 7mm OD 4mm ID 1.5mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 50 4mmx7mmx1.5mm

uxcell

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product

7.6

242 Viton O-Ring, 90A Durometer, Round, Black, 4" ID, 4-1/4" OD, 1/8" Width (Pack of 5) 242 3.984 Inches 4-1/4 Inches 0.139 Inches 3.984 Inches 4-1/4 Inches 0.139 inches 5

Mr O-Ring

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product

7.3

O-Ring, Buna-n, Tool Kit with 3 Convenient Sizes, Replacement for Mini Dental Implants

FUSHIPRO

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