--- 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: "S/.147" currency: PEN in_stock: true reviews_count: 5 category: "Captain O Ring" url: https://www.desertcart.pe/products/254624639-captain-o-ring-replacement-151122-o-rings-compatible-with-pentair store_origin: PE region: Peru --- # Leak-proof Buna-N rubber Precision OEM size fit Proudly USA assembled 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:** S/.147 **Availability:** ✅ In Stock ## Summary > 💧 Seal the deal with leak-free confidence! ## 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?** S/.147 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/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 high-quality replacement O-rings to keep your filtration system running smoothly all year. - • **Trusted Compatibility:** Direct replacement for multiple OEM part numbers, eliminating guesswork and downtime. - • **Made in the USA with Pride:** Assembled domestically for superior quality control and reliability you can count on. - • **Perfect OEM Fit Every Time:** Engineered to match Pentair Pentek Big Blue housings flawlessly for hassle-free installation. - • **Durable Leak-Resistant Material:** Made from NSF 61 certified Buna-N synthetic rubber ensuring safe, clean water without drips. ## Overview Captain O-Ring’s 151122 replacement O-rings are precision-engineered Buna-N seals designed specifically for Pentair Pentek Big Blue water filter housings. Each pack includes three durable, NSF 61 certified synthetic rubber O-rings that ensure a perfect, leak-proof fit. Proudly assembled in the USA, these O-rings offer reliable compatibility with multiple OEM part numbers, making maintenance effortless and keeping your water filtration system performing at its best. ## Description Product Description 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: Perfect fit - Perfect fit into my water filter tank. My older ones tended to get distorted if used too many times. That leads to leaks. The price of these is just right to buy a new one for every six month replacement. No leaks the first time I used it., and I did not have to reinstall it. I will be buying these repeatedly. ## 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 | #65,225 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #75 in Faucet O-Rings | | Brand Name | Captain O-Ring | | Color | Black | | Customer Reviews | 4.5 out of 5 stars 3,120 Reviews | | Item Diameter | 5.83 Inches | | Item Weight | 18 g | | 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 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/61crbTY-o3L.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. ### ⭐⭐⭐⭐⭐ Perfect fit *by T***L on 8 May 2026* Perfect fit into my water filter tank. My older ones tended to get distorted if used too many times. That leads to leaks. The price of these is just right to buy a new one for every six month replacement. No leaks the first time I used it., and I did not have to reinstall it. I will be buying these repeatedly. ### ⭐⭐⭐⭐⭐ De materiales de excelente calidad *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 --- ## 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.pe/products/254624639-captain-o-ring-replacement-151122-o-rings-compatible-with-pentair](https://www.desertcart.pe/products/254624639-captain-o-ring-replacement-151122-o-rings-compatible-with-pentair) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-07-13*