{"product_id":"pentair-r172009-cap-o-ring-replacement-for-pool-spa-filters-and-feeders","title":"Pentair R172009 Cap O-Ring Replacement for Pool \u0026 Spa Filters and Feeders","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eEnhance the reliability of your pool or spa system with the Pentair R172009 Cap O-Ring. This cap seal is crafted to fit Pentair standard and high square feet module cartridge filters and is also compatible with the Rainbow automatic chlorine\/bromine feeders (models 300, 302, 300-29X, 320, 322) and related feeder extensions. Made in Taiwan, it combines a compact form with durable construction to support steady filtration performance during busy outdoor seasons.\u003c\/p\u003e\n\u003cp\u003eWhether you’re performing routine maintenance or undertaking a cap replacement after service, this O-ring is designed to integrate smoothly with your existing equipment, helping you maintain a tight seal at the cap junction and reduce the chance of leaks. The result is a simpler, more predictable maintenance experience for your pool or spa.\u003c\/p\u003e\n\u003ch2\u003eWhy it matters\u003c\/h2\u003e\n\u003cp\u003eSmall components can influence overall system performance. A fresh cap O-ring can help preserve proper seal integrity at the cap connection, supporting smooth water flow through the cartridge and consistent filtration efficiency. By substituting a worn or degraded O-ring, you may reduce leakage risks and simplify future servicing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatibility: fits Pentair standard and high square feet module cartridge filters; also works with Rainbow feeders and extensions.\u003c\/li\u003e\n  \u003cli\u003eQuality origin: manufactured in Taiwan for dependable part performance.\u003c\/li\u003e\n  \u003cli\u003eCompact packaging: designed for easy storage and quick replacement during maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications and care\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMade in Taiwan\u003c\/li\u003e\n  \u003cli\u003ePackage dimensions: 12.192 cm (H) x 0.508 cm (L) x 9.398 cm (W)\u003c\/li\u003e\n  \u003cli\u003ePackage weight: 0.017 kg\u003c\/li\u003e\n  \u003cli\u003eProduct type: Outdoor Living\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePractical use and tips\u003c\/h2\u003e\n\u003cp\u003eInspect the O-ring for any cracks or deformations before reinstalling. Clean the seating surface of the cap to ensure a secure fit, and replace the O-ring if you notice any signs of wear. This replacement is a straightforward step in routine maintenance that can help keep your filtration system running smoothly.\u003c\/p\u003e\n\u003cp\u003eReal-world scenarios often include seasonal upkeep, backwashing events, or after servicing the filter cap. Keeping a ready-cap O-ring on hand can streamline these tasks and reduce downtime, so you can spend more time enjoying clean water.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What does the Pentair R172009 cap O-ring replacement fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits Pentair standard and high square feet module cartridge filters and Rainbow feeders models 300, 302, 300-29X, 320, 322, and feeder extensions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Where is the product made and what are its dimensions?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Made in Taiwan; package dimensions are 12.192 cm H x 0.508 cm L x 9.398 cm W.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":43988258914438,"sku":"B0040RWRTG","price":8.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/1602\/5478\/files\/pentair-r172009-cap-o-ring-replacement-pool-spa-filter-feeder.jpg?v=1778843472","url":"https:\/\/patiozora.com\/products\/pentair-r172009-cap-o-ring-replacement-for-pool-spa-filters-and-feeders","provider":"PatioZora","version":"1.0","type":"link"}