We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.
DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
💧 Seal the deal with leak-free confidence!
The Captain O-Ring K4 Replacement Kit includes 8 high-quality Buna-N rubber O-rings in 4 sizes, designed to restore and maintain leak-proof seals for a wide range of popular water filtration systems. NSF 61 certified and proudly assembled in the USA, this kit ensures safe, durable, and reliable performance for your home or office water filters.
| ASIN | B08126ZTYT |
| Best Sellers Rank | #150,205 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #57 in Faucet O-Rings |
| Brand | Captain O-Ring |
| Color | Black (Rubber) |
| Date First Available | November 5, 2019 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.44 ounces |
| Manufacturer | Captain O-Ring LLC |
| Material | Synthetic Rubber |
| Number of Pieces | 8 |
| Package Dimensions | 5.43 x 3.78 x 0.43 inches |
| UPC | 604015686640 |
| Unit Count | 1 Count |
T**D
Great kit for water filters.
Used this to replace the O-Ring in an Omnifilter. Worked perfect. No more leaks!
N**N
O ring
It was a perfect fit
A**R
Great product!
Good product. Excellent shipper and convenient package. Will use again!
E**I
i have a older filter and the 4 options did not fit....
The 4 options are good, but it did not fit my older filter.... Good news, the seller did allow returns...
A**R
As detailed
Works
A**.
Filters
It was a good price but I feel.it should have been included with the order of the filters
R**S
The O-Ring Worked!!!!!!!
I was a little disappointed that the package contained 8 O-Rings, and only 2 in the package were applicable to my water filter (Omni-Filter CBF1). So, I have 6 that are relatively useless. But, the O-Ring I needed worked and stopped the leak! Awesome! I don't mind having extras I can't use, so long as what was sent did work! Fantastic! I ordered another set of O-Rings from them, so I don't have to mess with this again in the future.
J**I
Right on Time
These O-Rings are for my under-the-sink water purifier. The package comes with different sizes to fit many types of filters.
Trustpilot
2 weeks ago
1 month ago