---
product_id: 414837516
title: "Captain O-Ring - Replacement OK25 O-Rings Compatible with OmniFilter OB1, WH5, U24, U25 Water Filter Housings (2 Sets, 8 O-Rings)"
brand: "captain o-ring"
price: "€ 0.22"
currency: EUR
in_stock: false
url: https://www.desertcart.it/products/414837516-captain-o-ring-replacement-ok25-o-rings-compatible-with-omnifilter
store_origin: IT
region: Italy
---

# Leak-proof Buna-N material 2 complete replacement sets 8 precision O-rings included Captain O-Ring - Replacement OK25 O-Rings Compatible with OmniFilter OB1, WH5, U24, U25 Water Filter Housings (2 Sets, 8 O-Rings)

**Brand:** captain o-ring
**Price:** € 0.22
**Availability:** ❌ Out of Stock

## Summary

> 💧 Seal the deal with Captain O-Ring—because leaks are so last season!

## Quick Answers

- **What is this?** Captain O-Ring - Replacement OK25 O-Rings Compatible with OmniFilter OB1, WH5, U24, U25 Water Filter Housings (2 Sets, 8 O-Rings) by captain o-ring
- **How much does it cost?** € 0.22 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/414837516-captain-o-ring-replacement-ok25-o-rings-compatible-with-omnifilter)

## Best For

- captain o-ring enthusiasts

## Why This Product

- Trusted captain o-ring brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Buna-N Build:** Crafted from nitrile butadiene rubber for superior chemical resistance and long-lasting performance.
- • **Ultimate Leak Defense:** Replace your worn-out O-rings every third filter change to keep your water system flawless.
- • **Ready-to-Use 2-Set Pack:** Double the value with 8 O-rings in a resealable, branded package—always have spares on hand.
- • **Trusted Quality & Warranty:** Manufactured and backed by Captain O-Ring LLC with a 1-year defect warranty for peace of mind.
- • **Precision Fit for OmniFilter:** Specifically engineered for OB1, WH5, U24, and U25 housings—no guesswork, just perfect sealing.

## Overview

Captain O-Ring's OK25 Replacement O-Rings come in a convenient 2-set pack of 8 high-quality Buna-N rings, designed to perfectly fit OmniFilter OB1, WH5, U24, and U25 water filter housings. Engineered for durability and leak prevention, these O-rings ensure your water filtration system runs smoothly and reliably, backed by a 1-year warranty from Captain O-Ring LLC.

## Description

The OK25 o-ring seals between your filter housing and filter head/cap on OmniFilter OB1, WH5, and U25 water filter housings. The OK25 o-ring kit contains four different o-ring sizes. This convenient 2 set package contains 2 of each size, for 8 o-rings total.  What to expect: This item includes eight (8) o-rings in a resealable zip-top poly bag with "Captain O-Ring" branded packaging.  Manufactured and warrantied against defect for one year by Captain O-Ring LLC. "Captain O-Ring" is a registered trademark of Captain O-Ring LLC.

## Features

- (2 Sets) OmniFilter OK25 Replacement O-Ring Gasket Seals (Includes 4 sizes, 2 of each)
- Compatible with OmniFilter OB1, WH5, and U25 water filter housings
- Quickly fix or prevent a leak in your water filter unit by replacing your filter housing o-ring with every third filter change
- Material: Buna-N (nitrile butadiene rubber)
- Manufactured and Warrantied by Captain O-Ring LLC

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 14 x 9.09 x 1.19 cm; 32 g |
| Number of pieces | 8 |
| Batteries required | No |

## Product Details

- **Material:** Synthetic Rubber
- **Brand:** Captain O-Ring
- **Colour:** Black (Rubber)
- **UPC:** 810061940166
- **Manufacturer:** Captain O-Ring LLC

## Images

![Captain O-Ring - Replacement OK25 O-Rings Compatible with OmniFilter OB1, WH5, U24, U25 Water Filter Housings (2 Sets, 8 O-Rings) - Image 1](https://m.media-amazon.com/images/I/61ujAQJ8gUL.jpg)
![Captain O-Ring - Replacement OK25 O-Rings Compatible with OmniFilter OB1, WH5, U24, U25 Water Filter Housings (2 Sets, 8 O-Rings) - Image 2](https://m.media-amazon.com/images/I/71xD26CQveL.jpg)
![Captain O-Ring - Replacement OK25 O-Rings Compatible with OmniFilter OB1, WH5, U24, U25 Water Filter Housings (2 Sets, 8 O-Rings) - Image 3](https://m.media-amazon.com/images/I/71LDUUmNfDL.jpg)
![Captain O-Ring - Replacement OK25 O-Rings Compatible with OmniFilter OB1, WH5, U24, U25 Water Filter Housings (2 Sets, 8 O-Rings) - Image 4](https://m.media-amazon.com/images/I/714iCIjESPL.jpg)
![Captain O-Ring - Replacement OK25 O-Rings Compatible with OmniFilter OB1, WH5, U24, U25 Water Filter Housings (2 Sets, 8 O-Rings) - Image 5](https://m.media-amazon.com/images/I/71QwDmEri6L.jpg)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-21*