---
product_id: 254624639
title: "Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack)"
brand: "captain o-ring"
price: "€ 47.97"
currency: EUR
in_stock: true
reviews_count: 5
category: "Captain O Ring"
url: https://www.desertcart.be/products/254624639-captain-o-ring-replacement-151122-o-rings-compatible-with-pentair
store_origin: BE
region: Belgium
---

# Buna-N rubber NSF 61 certified for safe water 3-pack OEM size precision fit Proudly USA assembled quality Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack)

**Brand:** captain o-ring
**Price:** € 47.97
**Availability:** ✅ In Stock

## Summary

> 💧 Seal in purity, seal out leaks — upgrade your water filter game today!

## Quick Answers

- **What is this?** Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack) by captain o-ring
- **How much does it cost?** € 47.97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/254624639-captain-o-ring-replacement-151122-o-rings-compatible-with-pentair)

## 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

- • **Triple Pack Value:** Three durable o-rings included to keep your water filter system running smoothly longer.
- • **Effortless Installation:** Fits snugly with minimal lubricant needed—get your filter sealed right on the first try.
- • **Safe & Certified Material:** Made from NSF 61 certified Buna-N rubber for clean, contaminant-free drinking water.
- • **Perfect OEM Fit Every Time:** Direct replacement for Pentair Pentek Big Blue filters ensures leak-proof sealing without hassle.
- • **Trusted American Craftsmanship:** Assembled in the USA with quality control that guarantees reliability and peace of mind.

## Overview

Captain O-Ring’s Replacement 151122 O-Rings (3 Pack) are precision-engineered Buna-N rubber seals compatible with Pentair Pentek Big Blue water filter housings. Each o-ring measures approximately 5.5" ID x 5.83" OD x 0.165" thickness, ensuring a perfect OEM fit. NSF 61 certified for safe drinking water, these durable gaskets are proudly assembled in the USA, offering a reliable, easy-to-install solution to maintain leak-free, clean water filtration.

## Description

Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack) : desertcart.ae: Kitchen

Review: Perfect Fit. Sat in Blue Blue Filter Housing and Secured First Attempt. 5 Stars - Don’t believe the AI overview or negative comments. These are the real deal. I just tried one of the three o Rings last night and it fits literally perfect. These guys should have made the OEM O rings because my original one was stretched out and this replacement one was perfect. I have the Big Blue Pentek OPAQUE 10 x 4.5 inch system. It sat perfectly in the borders of the cylinder and I was able to secure it with minimal lubricant grease my first attempt refastenig the cynlinder. Could not be happier with these O rings please don’t hesitate it’s totally worth the 15 dollars to not struggle with a heavy filter system.
Review: Lo requerido - Funcionan

## Features

- Replacement 151122 o-rings compatible with Pentair/Pentek style Big Blue Water Filter Housings (3 Pack)
- Includes 3 replacement o-rings (also called seals or gaskets) to repair your leaking water filter housing [OEM UPC: 051678511220 , 885343762095]
- 151122 OEM Size o-rings are approximately 5.5" Inside Diameter x 5.83" Outside Diameter x 0.165" Thickness. Please confirm that you need this size o-ring and that your filter housing is listed on the list of compatible housings or that your product manual calls for the 151122 o-ring part number or one of the other part numbers listed below.
- Direct Replacement for the following part numbers (see description below for full water filter compatibility list): Ace Hardware 4001756; American Plumber 152032, W10-OR; APEC O-RING-HB; Ametek Kleen-Plus 151122-03; Culligan OR-100, 151122-27, 01019189; HomeMaster #Oring122; Pentek 151122, BB BUNA-N
- Molded from NSF 61 certified buna-n rubber for safe and clean drinking water. Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B019Y85PR6 |
| Best Sellers Rank | #109,440 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #109 in Faucet O-Rings |
| Brand Name | Captain O-Ring |
| Color | Black |
| Customer Reviews | 4.5 out of 5 stars 3,184 Reviews |
| Item Diameter | 5.83 Inches |
| Item Weight | 0.04 Pounds |
| Manufacturer | Captain O-Ring |
| Material | Synthetic Rubber |
| Material Type | Synthetic Rubber |
| Model | 151122x3 |
| Nominal Inside Diameter | 5.5 Inches |
| Nominal Outside Diameter | 5.83 Inches |
| Number of Items | 3 |
| Number of Pieces | 3 |
| Part Number | 151122 |
| Temperature Range | 4E+1 Degrees Fahrenheit |
| UPC | 722589526046 |
| Unit Count | 3 Count |

## Product Details

- **Brand:** Captain O-Ring
- **Color:** black
- **Item Diameter:** 5.83 Inches
- **Material:** Buna-N Rubber (NSF61 Certified)
- **Nominal Inside Diameter:** 5.5 Inches

## Images

![Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack) - Image 1](https://m.media-amazon.com/images/I/413FRddazjL.jpg)
![Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack) - Image 2](https://m.media-amazon.com/images/I/51xNmF5fnKL.jpg)
![Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack) - Image 3](https://m.media-amazon.com/images/I/51LxDimWpdL.jpg)
![Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack) - Image 4](https://m.media-amazon.com/images/I/51s+WMiPzHL.jpg)
![Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack) - Image 5](https://m.media-amazon.com/images/I/51UzDDPwTLL.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Questions & Answers

**Q: can this ring be streching?**
A: Do you mean can it be stretched?  Essentially, no.  A little bit, but O-rings are not elastic like rubber bands.

**Q: Anyone tried these on us water systems magna (grey housing) filters?**
A: It's plumbing.  There's no way to know whether a gasket or part will fit without buying it and trying it.

**Q: is this the o ring for an Aqua Flow 26258?**
A: The filter housing for this ring is for a 20" Big Blue filter which was installed by Culligan......my guess is the diameter is a standard size for any 20" housing.....but best to confirm with Aqua Flow

**Q: Will these fit the eco pure epw4 filter**
A: i dont believe so

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Fit. Sat in Blue Blue Filter Housing and Secured First Attempt. 5 Stars
*by D***E on 9 August 2025*

Don’t believe the AI overview or negative comments. These are the real deal. I just tried one of the three o Rings last night and it fits literally perfect. These guys should have made the OEM O rings because my original one was stretched out and this replacement one was perfect. I have the Big Blue Pentek OPAQUE 10 x 4.5 inch system. It sat perfectly in the borders of the cylinder and I was able to secure it with minimal lubricant grease my first attempt refastenig the cynlinder. Could not be happier with these O rings please don’t hesitate it’s totally worth the 15 dollars to not struggle with a heavy filter system.

### ⭐⭐⭐⭐⭐ Lo requerido
*by D***L on 12 August 2026*

Funcionan

### ⭐⭐⭐⭐⭐ Perfect fit- fixed leaking Big Blue #20
*by E***N on 27 July 2026*

Fast shipping. Perfect fit at a great price. The airing fit perfectly and fixed the leak in my Big Blue. I also ordered a new filter. Highly recommend this product. I got three for what Home Depot would charge for one. Highly recommend seller.

## Frequently Bought Together

- Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack)
- KEZE Waterproof Food Grade Silicone Lubricant Plumbers Grease for Valve Sealant Faucet O Rings 1 oz 1-Pack
- Pentair Pentek DGD-5005 Big Blue Water Filter, 10-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 10" x 4.5", 5 Micron, Pack of 1

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.be/products/254624639-captain-o-ring-replacement-151122-o-rings-compatible-with-pentair](https://www.desertcart.be/products/254624639-captain-o-ring-replacement-151122-o-rings-compatible-with-pentair)

---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-09-21*