--- product_id: 15716247 title: "Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack)" brand: "captain o-ring" price: "R436" currency: ZAR in_stock: true reviews_count: 11 category: "Captain O Ring" url: https://www.desertcart.co.za/products/15716247-replacement-63597174c-63597174p-ao-wh-std-or-2-wp252235-orings store_origin: ZA region: South Africa --- # NSF 61 certified safe for drinking water 3-Pack precision-fit O-Rings Proudly USA assembled Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack) **Brand:** captain o-ring **Price:** R436 **Availability:** βœ… In Stock ## Summary > πŸ’§ Seal your water’s purity with confidence β€” don’t let leaks cramp your flow! ## Quick Answers - **What is this?** Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack) by captain o-ring - **How much does it cost?** R436 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/15716247-replacement-63597174c-63597174p-ao-wh-std-or-2-wp252235-orings) ## 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 - β€’ **Made in the USA:** Hand-assembled in Gloucester City, NJ, ensuring top-tier craftsmanship and reliability. - β€’ **Perfect Dimensions:** 3.5" inside diameter x 3.75" outside diameter for a flawless, snug fit every time. - β€’ **Leak-Proof Confidence:** Replace every 3rd filter change to maintain a perfect seal and avoid costly leaks. - β€’ **Universal Compatibility:** Fits top brands like 3M Aqua-Pure, AO Smith, Watts & Project Source housings effortlessly. - β€’ **Premium NSF 61 Buna-N Rubber:** Certified safe for clean, healthy drinking waterβ€”no compromises on quality. ## Overview This 3-pack of replacement O-Rings from Captain O-Ring is engineered for select 3M Aqua-Pure, AO Smith, Watts, and Project Source water filter housings. Molded from NSF 61 certified buna-n rubber, these durable seals ensure leak-free, safe drinking water. With precise 3.5" ID and 3.75" OD dimensions, they fit perfectly and are recommended for replacement every third filter change. Proudly hand-assembled in the USA, these O-Rings combine trusted quality with universal compatibility to keep your filtration system running flawlessly. ## Description Product description Captain O-Ring - 63597174C / AO-WH-STD-OR-2 / WP252235 O-Rings (3 Pack) Compatible with the following filter housings 3M (AquaPure): AP11S, AP11T, AP12S, AP12T, AP26T, AP51T, AP101S, AP101T, AP102S, AP102T, AP110, FHO-34, FHT-34 3M AP200/210 Series, APC77, APC78, APCRF (Replaces square ring 36851-35) AO Smith AO-WH-PRE, AO-WH-PREV, AO-MF-B Project Source PS-WHS-H, PS-WHS-HV Watts: 500222, 500223 How often do I need to change my filter housing's o-ring? Captain O-Ring's high quality replacement water filter housing o-rings are designed for reliable extended use. Still, it is typically recommended to replace your o-ring on every third filter change to ensure it is in top shape to prevent leaks. How often do I need to change my filter housing's o-ring? Captain O-Ring's high quality replacement water filter housing o-rings are designed for reliable extended use. Still, it is typically recommended to replace your o-ring on every third filter change to ensure it is in top shape to prevent leaks. Can I use grease or lubricant on these o-rings? You can if you'd like to. Generally a brand new buna-n o-ring can be installed just with wetting it with water. However, these o-rings are compatible with all silicone and petroleum based lubricants, as well as natural oils like vegetable oil. Can I use grease or lubricant on these o-rings? You can if you'd like to. Generally a brand new buna-n o-ring can be installed just with wetting it with water. However, these o-rings are compatible with all silicone and petroleum based lubricants, as well as natural oils like vegetable oil. What if I don't know what o-ring part number my filter housing needs? Use our handy printable water filter housing o-ring size chart. Print out the chart and lay your old o-ring on the page to see which o-ring it matches with. You can find the size chart listed as "User Guide [PDF]" under "Product guides and documents" What if I don't know what o-ring part number my filter housing needs? Use our handy printable water filter housing o-ring size chart. Print out the chart and lay your old o-ring on the page to see which o-ring it matches with. You can find the size chart listed as "User Guide [PDF]" under "Product guides and documents" Are these o-rings safe for use in my drinking water? Yes! These Captain O-Ring replacement o-rings are molded from NSF 61 certified buna-n rubber for safe and clean drinking water. Are these o-rings safe for use in my drinking water? Yes! These Captain O-Ring replacement o-rings are molded from NSF 61 certified buna-n rubber for safe and clean drinking water. Where is this o-ring kit assembled? Proudly assembled in the USA! We hand assemble these kits in Gloucester City, New Jersey. Where is this o-ring kit assembled? Proudly assembled in the USA! We hand assemble these kits in Gloucester City, New Jersey. ## Features - 3-Pack replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 / ORG006 / PS-WHS-ORG o-rings for select 3M Aqua-Pure, AO Smith, Watts, Project Source water filter housings. - Compatible with the following filter housings: 3M AP11S, AP11T, AP12S, AP12T, AP26T, AP51T, AP101S, AP101T, AP102S, AP102T, AP110, FHO-34, FHT-34; Watts 500222, 500223; AO Smith AO-WH-PRE, AO-WH-PREV, AO-MF-B; and Project Source PS-WHS-H, PS-WHS-HV. - Includes 3 replacement o-rings (also called seals or gaskets) to repair your leaking water filter housing. Replace your o-ring with every 3rd filter change to prevent leaks. - O-Ring is approximately 3.5" Inside Diameter x 3.75" Outside Diameter. - 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 | B00T56QCCA | | Best Sellers Rank | #148,495 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #60 in Faucet O-Rings | | Brand | Captain O-Ring | | Brand Name | Captain O-Ring | | Color | Black | | Customer Reviews | 4.5 out of 5 stars 475 Reviews | | Item Diameter | 3.75 Inches | | Manufacturer | Captain O-Ring LLC | | Material | Rubber | | Material Type | Rubber | | Nominal Inside Diameter | 3.5 Inches | | Nominal Outside Diameter | 3.75 Inches | | Number of Pieces | 3 | | Part Number | 63597174C | | UPC | 701748961300 | | Unit Count | 3.0 Count | ## Product Details - **Brand:** Captain O-Ring - **Color:** Black - **Item Diameter:** 3.75 Inches - **Material:** Rubber - **Nominal Inside Diameter:** 3.5 Inches ## Images ![Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack) - Image 1](https://m.media-amazon.com/images/I/71HKaOkZ6ZL.jpg) ![Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack) - Image 2](https://m.media-amazon.com/images/I/71TgYbsZjQL.jpg) ![Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack) - Image 3](https://m.media-amazon.com/images/I/719l6jj4a4L.jpg) ![Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack) - Image 4](https://m.media-amazon.com/images/I/71b0hrrQ5VL.jpg) ![Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack) - Image 5](https://m.media-amazon.com/images/I/71QwDmEri6L.jpg) ## Questions & Answers **Q: How often do I need to change my filter housing's o-ring?** A: Captain O-Ring's high quality replacement water filter housing o-rings are designed for reliable extended use. Still, it is typically recommended to replace your o-ring on every third filter change to ensure it is in top shape to prevent leaks. **Q: Can I use grease or lubricant on these o-rings?** A: You can if you'd like to. Generally a brand new buna-n o-ring can be installed just with wetting it with water. However, these o-rings are compatible with all silicone and petroleum based lubricants, as well as natural oils like vegetable oil. **Q: What if I don't know what o-ring part number my filter housing needs?** A: Use our handy printable water filter housing o-ring size chart. Print out the chart and lay your old o-ring on the page to see which o-ring it matches with. You can find the size chart listed as "User Guide [PDF]" under "Product guides and documents" **Q: Are these o-rings safe for use in my drinking water?** A: Yes! These Captain O-Ring replacement o-rings are molded from NSF 61 certified buna-n rubber for safe and clean drinking water. **Q: Where is this o-ring kit assembled?** A: Proudly assembled in the USA! We hand assemble these kits in Gloucester City, New Jersey. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by D***G on October 21, 2025* ### ⭐⭐⭐⭐⭐ Review *by B***I on May 29, 2025* ### ⭐⭐⭐⭐⭐ Review *by W***T on January 7, 2021* ## Frequently Bought Together - Captain O-Ring - Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack) - 3M Aqua-Pure AP110 2-Pack Whole House Replacement Water Filter Cartridges, 5 Micron Sediment Reduction, for use with AP11T or AP101T Housing - 3M Aqua-Pure AP101T Whole House Transparent Water Filter Housing, Ideal for 1-2 Bath Homes, Standard 1-high Drop-in Cartridge --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/15716247-replacement-63597174c-63597174p-ao-wh-std-or-2-wp252235-orings](https://www.desertcart.co.za/products/15716247-replacement-63597174c-63597174p-ao-wh-std-or-2-wp252235-orings) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-06*