---
product_id: 673023813
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: "€ 42.43"
currency: EUR
in_stock: true
url: https://www.desertcart.de/products/673023813-captain-o-ring-replacement-ok25-o-rings-compatible-with-omnifilter
store_origin: DE
region: Germany
---

# Buna-N rubber for leak-proof seal 2 sets for double the durability 8 precision O-rings per pack 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:** € 42.43
**Availability:** ✅ In Stock

## Summary

> 💧 Seal the deal with Captain O-Ring — never let a drip cramp your flow!

## 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?** € 42.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/673023813-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

- • **Bulk Value Pack:** Two sets with 8 O-rings total means you’re always ready for maintenance without last-minute runs.
- • **Leak-Proof Confidence:** Buna-N synthetic rubber ensures a durable, watertight seal every time.
- • **Complete Compatibility:** Designed specifically for OmniFilter OB1, WH5, U24, and U25 housings—no guesswork needed.
- • **Easy Maintenance Upgrade:** Replace your O-rings every third filter change to prevent leaks and extend filter life effortlessly.
- • **Trusted Quality & Warranty:** Manufactured and backed by Captain O-Ring LLC with a 1-year defect warranty for peace of mind.

## Overview

Captain O-Ring’s OK25 Replacement O-Rings come in a convenient 2-set pack with 8 durable Buna-N rubber rings, engineered for a perfect fit with OmniFilter OB1, WH5, U24, and U25 water filter housings. Designed to prevent leaks and extend filter life, these precision gaskets are backed by a 1-year warranty, making them the essential upgrade for any water filtration system maintenance.

## 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 |
|---------------|-------|
| Manufacturer | Captain O-Ring LLC |
| Part number | OK25-2set" or "OMNIFILTEROK25-2SETS-905813582e |
| Item Weight | 32 g |
| Package Dimensions | 14 x 9.09 x 1.19 cm; 32 g |
| Manufacturer reference | OK25-2set" or "OMNIFILTEROK25-2SETS-905813582e |
| Colour | Black (Rubber) |
| Material | Synthetic Rubber |
| Item Package Quantity | 3 |
| Number of Pieces | 8 |
| Batteries included? | No |
| 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 Germany*
*Store origin: DE*
*Last updated: 2026-01-23*