---
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: "₩72224"
currency: KRW
in_stock: true
reviews_count: 5
category: "Captain O Ring"
url: https://www.desertcart.kr/products/673023813-captain-o-ring-replacement-ok25-o-rings-compatible-with-omnifilter
store_origin: KR
region: South Korea
---

# Leak-proof Buna-N rubber 2 complete replacement sets 8 precision-fit O-rings 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:** ₩72224
**Availability:** ✅ In 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?** ₩72224 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/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 full sets with 8 O-rings total, so you’re always ready for maintenance without last-minute runs.
- • **Ultimate Leak Defense:** Engineered Buna-N rubber ensures a watertight seal every time, protecting your filtration system from costly leaks.
- • **Complete Compatibility:** Fits OmniFilter OB1, WH5, U24, and U25 housings perfectly—no guesswork, just seamless replacement.
- • **Trusted Quality Assurance:** Backed by a 1-year warranty from Captain O-Ring LLC, guaranteeing reliability and peace of mind.
- • **Durability Meets Convenience:** Synthetic rubber material resists wear and tear, extending the life of your water filter housing seals.

## Overview

Captain O-Ring’s OK25 Replacement O-Rings come in a convenient 2-set pack with 8 durable Buna-N rubber seals, designed specifically for OmniFilter OB1, WH5, U24, and U25 water filter housings. These precision-fit gaskets prevent leaks and ensure optimal filter performance, backed by a 1-year warranty for dependable 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.

Review: Great replacement orings
Review: Good deal and assortment of sizes for water filter housing.

## 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 |
|---------------|-------|
| ASIN | B09QV5XS74 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 963,899 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,695 in Tap O-Rings |
| Colour | Black (Rubber) |
| Customer Reviews | 4.3 4.3 out of 5 stars (105) |
| Date First Available | 23 Feb. 2022 |
| Item Package Quantity | 3 |
| Item Weight | 32 g |
| Manufacturer | Captain O-Ring LLC |
| Manufacturer reference | OK25-2set" or "OMNIFILTEROK25-2SETS-905813582e |
| Material | Synthetic Rubber |
| Number of Pieces | 8 |
| Package Dimensions | 14 x 9.09 x 1.19 cm; 32 g |
| Part number | OK25-2set" or "OMNIFILTEROK25-2SETS-905813582e |

## Product Details

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

## 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/41O2B2+awdL.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/41T2rAY3wuL.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/51XUX9OsMjL.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/51dNLwFmEbL.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/51mHNpiQyDL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***N on 21 August 2025*

Great replacement orings

### ⭐⭐⭐⭐⭐ Review
*by A***R on 6 May 2025*

Good deal and assortment of sizes for water filter housing.

### ⭐⭐⭐⭐⭐ Review
*by H***E on 5 August 2025*

They fit just like they said they would. Delivered the next day

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**Shop now:** [https://www.desertcart.kr/products/673023813-captain-o-ring-replacement-ok25-o-rings-compatible-with-omnifilter](https://www.desertcart.kr/products/673023813-captain-o-ring-replacement-ok25-o-rings-compatible-with-omnifilter)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-05*