---
product_id: 399984455
title: "Pentek, Pentair Water 151122 OEM Size Big Blue O-Ring Buna-N ORing by Captain O-Ring by Captain O-Ring LLC"
brand: "captain o-ring"
price: "$87"
currency: NZD
in_stock: false
reviews_count: 5
category: "Captain O Ring"
url: https://www.desertcart.nz/products/399984455-pentek-pentair-water-151122-oem-size-big-blue-o-ring
store_origin: NZ
region: New Zealand
---

# Pentek, Pentair Water 151122 OEM Size Big Blue O-Ring Buna-N ORing by Captain O-Ring by Captain O-Ring LLC

**Brand:** captain o-ring
**Price:** $87
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Pentek, Pentair Water 151122 OEM Size Big Blue O-Ring Buna-N ORing by Captain O-Ring by Captain O-Ring LLC by captain o-ring
- **How much does it cost?** $87 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/399984455-pentek-pentair-water-151122-oem-size-big-blue-o-ring)

## 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

## Description

Pentek, Pentair Water 151122 OEM Size Big Blue O-Ring Buna-N ORing by Captain O-Ring by Captain O-Ring LLC : desertcart.in: Garden & Outdoors

Review: These o-rings fit the Pentair Big Blue filter much better than other brands I have bought. Other brands had a diameter slightly too big for the o-ring channel in the filter sump, making it difficult to seat them in the channel, which required multiple attempts to reattach the sump to the top of the filter to get the assembly leaktight. These o-rings were just right. They seated totally within and against the outside wall of the filter sump o-ring channel, so when the sump was reattached to the top the filter it was leaktight on the first try.
Review: Good fitment. Seems to be good quality rubber. No leaks!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B019Y85PR6 |
| Are batteries included? | No |
| Best Sellers Rank | #385,045 in Garden & Outdoors ( See Top 100 in Garden & Outdoors ) #456 in Supplies & Accessories |
| Brand | Captain O-Ring |
| Colour | Black |
| Country of Origin | USA |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,042) |
| Date First Available | 9 February 2016 |
| Item Weight | 18.1 g |
| Item model number | 151122x3 |
| Manufacturer | Captain O-Ring LLC |
| Material | Synthetic Rubber |
| Model number | 151122x3 |
| Net Quantity | 1.0 Count |
| Nominal Inside Diameter | 5.5 Inches |
| Nominal Outside Diameter | 5.83 Inches |
| Number of Pieces | 3 |
| Package Dimensions | 16.3 x 14.6 x 0.9 cm; 18.14 g |
| UPC | 722589526046 |

## Product Details

- **Brand:** Captain O-Ring
- **Colour:** Black
- **Material:** Synthetic Rubber
- **Nominal Inside Diameter:** 5.5 Inches
- **Nominal Outside Diameter:** 5.83 Inches

## Images

![Pentek, Pentair Water 151122 OEM Size Big Blue O-Ring Buna-N ORing by Captain O-Ring by Captain O-Ring LLC - Image 1](https://m.media-amazon.com/images/I/413FRddazjL.jpg)
![Pentek, Pentair Water 151122 OEM Size Big Blue O-Ring Buna-N ORing by Captain O-Ring by Captain O-Ring LLC - Image 2](https://m.media-amazon.com/images/I/51LxDimWpdL.jpg)
![Pentek, Pentair Water 151122 OEM Size Big Blue O-Ring Buna-N ORing by Captain O-Ring by Captain O-Ring LLC - Image 3](https://m.media-amazon.com/images/I/51UzDDPwTLL.jpg)
![Pentek, Pentair Water 151122 OEM Size Big Blue O-Ring Buna-N ORing by Captain O-Ring by Captain O-Ring LLC - Image 4](https://m.media-amazon.com/images/I/51b4QmyV7dL.jpg)
![Pentek, Pentair Water 151122 OEM Size Big Blue O-Ring Buna-N ORing by Captain O-Ring by Captain O-Ring LLC - Image 5](https://m.media-amazon.com/images/I/51keIJBSaLL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Review
*by C***S on 27 October 2025*

These o-rings fit the Pentair Big Blue filter much better than other brands I have bought. Other brands had a diameter slightly too big for the o-ring channel in the filter sump, making it difficult to seat them in the channel, which required multiple attempts to reattach the sump to the top of the filter to get the assembly leaktight. These o-rings were just right. They seated totally within and against the outside wall of the filter sump o-ring channel, so when the sump was reattached to the top the filter it was leaktight on the first try.

### ⭐⭐⭐⭐⭐ Review
*by J***H on 13 January 2026*

Good fitment. Seems to be good quality rubber. No leaks!

### ⭐⭐⭐⭐⭐ Review
*by E***Z on 25 July 2024*

Muy buen producto, hecho con buenos materiales y también buenos terminados

## 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

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**Shop now:** [https://www.desertcart.nz/products/399984455-pentek-pentair-water-151122-oem-size-big-blue-o-ring](https://www.desertcart.nz/products/399984455-pentek-pentair-water-151122-oem-size-big-blue-o-ring)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-10*