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💧 Seal your system, secure your sip — never miss a drop!
The K4 Replacement O-Ring Kit by Captain O-Ring LLC includes 8 high-quality Buna-N rubber o-rings in 4 sizes, compatible with a wide range of premium water filtration systems. NSF 61 certified and proudly assembled in the USA, this kit ensures leak-proof performance and safe drinking water, packaged conveniently with two sets for extended use.
| ASIN | B08126ZTYT |
| Best Sellers Rank | #159,418 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #64 in Faucet O-Rings |
| Brand | Captain O-Ring |
| Brand Name | Captain O-Ring |
| Color | Black (Rubber) |
| Customer Reviews | 4.3 out of 5 stars 168 Reviews |
| Manufacturer | Captain O-Ring LLC |
| Material | Synthetic Rubber |
| Material Type | Synthetic Rubber |
| Number of Pieces | 8 |
| Part Number | OmniFilter-K4-2set |
| 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!
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.
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**.
Filters
It was a good price but I feel.it should have been included with the order of the filters
A**R
As detailed
Works
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.
G**Y
Not applicable!
I am disappointed in the set of "O" rings, though it shows the CBF3 "O" ring; this one doesn't have a groove. "O" ring for CBF3 is square with a groove. The round "O" ring failed to seal. Can you supply me with the right "O" ring? Thank you, George
Trustpilot
4 days ago
1 day ago