--- product_id: 8984487 title: "Pentair 274494 Adapter O-Ring Replacement Pool/Spa Filter, Heater and Valve" brand: "pentair" price: "148 kr" currency: NOK in_stock: true reviews_count: 7 category: "Pentair" url: https://www.desertcart.no/products/8984487-pentair-274494-adapter-o-ring-replacement-pool-spa-filter-heater store_origin: NO region: Norway --- # Leak-proof sealing Durable metal material Precision 2.75-inch fit Pentair 274494 Adapter O-Ring Replacement Pool/Spa Filter, Heater and Valve **Brand:** pentair **Price:** 148 kr **Availability:** ✅ In Stock ## Summary > 💧 Seal the deal with Pentair’s ultimate leak-stopper! ## Quick Answers - **What is this?** Pentair 274494 Adapter O-Ring Replacement Pool/Spa Filter, Heater and Valve by pentair - **How much does it cost?** 148 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/8984487-pentair-274494-adapter-o-ring-replacement-pool-spa-filter-heater) ## Best For - pentair enthusiasts ## Why This Product - Trusted pentair brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Engineering:** Exact 2-3/4 inch dimensions ensure a perfect, leak-proof seal every time. - • **Easy Leak Fix Solution:** Stop annoying leaks at the source and keep your pool running smoothly. - • **Trusted by Pros & DIYers:** Highly rated with 4.7 stars, fitting setups even 30 years old—join the savvy pool care community. - • **Durable Metal Construction:** Built to last with premium metal for long-term pool and spa reliability. - • **Universal Pentair Compatibility:** Seamlessly fits top Pentair filters, heaters & valves for hassle-free upgrades. ## Overview The Pentair 274494 Adapter O-Ring Replacement is a precision-engineered metal gasket designed to fit a wide range of Pentair pool and spa filters, heaters, and valves. Measuring 2.75 inches in diameter, it provides a durable, leak-proof seal that extends the life of your equipment. Trusted by professionals and DIY enthusiasts alike, this O-ring is the go-to fix for preventing leaks and maintaining optimal pool performance. ## Description This adapter o-ring is designed to use with Pentair FNS, Nautilus, Nautilus Plus D.E. and TR100C, TR140C, Triton II, Triton C, Triton C-3 sand pool and spa filters and also compatible with Pentair Minimax NT STD, NT LN and NT TSI pool/spa heaters. Also fits Pentair HiFlow, FullFlow and Push Pull pool/spa valves. Measures 2-3/4-inch length by 2-3/4-inch height by 1/4-inch width. Review: No more leaking from the bottom of the filter! - This O’ring is what you need to change to stop the leak from the bottom of a Pentair / Nautilus DE pool filter. Be aware that most times you will also need to replace the nut part #154412 which is very hard to remove without damage. Review: Fit my 30 year old setup just fine - Fit perfect. ## Features - Adapter o-ring replacement - Fits Pentair FNS, Nautilus, Nautilus Plus D.E. and TR100C, TR140C, Triton II, Triton C, Triton C-3 pool and spa sand filters - Also fits Pentair Minimax NT STD, NT LN and NT TSI pool/spa heaters - Also compatible with Pentair HiFlow, FullFlow and Push Pull pool/spa valves - Measures 2-3/4-inch length by 2-3/4-inch height by 1/4-inch width ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001D2Y8N4 | | Best Sellers Rank | #195,437 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #193 in Swimming Pool Heater Parts | | Brand | Pentair | | Brand Name | Pentair | | Color | Black | | Customer Reviews | 4.7 out of 5 stars 81 Reviews | | Global Trade Identification Number | 00788379695392 | | Item Diameter | 2.75 inches | | Item Weight | 9.07 g | | Manufacturer | Pentair - Distribution | | Material | Metal | | Material Type | Metal | | Model | PEN274494Z | | Nominal Outside Diameter | 2.75 inches | | Number of Items | 1 | | Number of Pieces | 1 | | Part Number | 274494 | | UPC | 788379695392 | | Unit Count | 1 Count | ## Product Details - **Brand:** Pentair - **Color:** Black - **Item Diameter:** 2.75 inches - **Material:** Metal - **Nominal Outside Diameter:** 2.75 inches ## Images ![Pentair 274494 Adapter O-Ring Replacement Pool/Spa Filter, Heater and Valve - Image 1](https://m.media-amazon.com/images/I/51E1qSJAduL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ No more leaking from the bottom of the filter! *by A***O on June 16, 2025* This O’ring is what you need to change to stop the leak from the bottom of a Pentair / Nautilus DE pool filter. Be aware that most times you will also need to replace the nut part #154412 which is very hard to remove without damage. ### ⭐⭐⭐⭐⭐ Fit my 30 year old setup just fine *by G***R on April 4, 2025* Fit perfect. ### ⭐⭐⭐⭐⭐ As described *by J***E on August 11, 2023* As described, came new in original Pentair packaging --- ## 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.no/products/8984487-pentair-274494-adapter-o-ring-replacement-pool-spa-filter-heater](https://www.desertcart.no/products/8984487-pentair-274494-adapter-o-ring-replacement-pool-spa-filter-heater) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-09-16*