{"product_id":"pentair-125-sqft-replacement-filter-cartridge","title":"Pentair 125 SqFt Replacement Filter Cartridge","description":"\u003cp data-path-to-node=\"0\"\u003eThe Pentair 125 SqFt Replacement Filter Cartridge (part number 59054300 or R173216) is a high-capacity internal fluid-filtration element engineered exclusively for residential pool and spa single-element filtration systems, such as the Pentair Clean \u0026amp; Clear 125 and Predator 125 vessels. The core filtration media is constructed from premium, heavy-weight, spun-bound Reemay® polyester fabric featuring high-density pleating that provides a true 125 square feet of physical filtration coverage. To prevent the element from collapsing inward under the immense crushing forces generated by high-volume water flow, the fabric pleats are wrapped radially around a rugged, perforated ABS plastic inner core and bound by high-tensile, break-resistant exterior pleat bands. Both ends of the cylinder are encapsulated in tough, chemical-resistant polyurethane end caps with an open center hole to establish a tight, reliable compression fit against the internal tank bulkheads. As pool water is forced through the fine pore structure of the polyester media, it traps and collects organic particulates, algae spores, and microscopic debris down to 20 microns, safely managing high-velocity distribution streams and continuous internal operating pressures up to 50 PSI without fluid bypass. Engineered to remain resilient under continuous pump vibration surges, this cartridge completely resists fiber fraying, end-cap softening, and material degradation from prolonged exposure to pool sanitizers like chlorine, bromine, or routine scale-remover acid flushes. Due to its dense fabric pleating and rigid internal support framework, this individual replacement cartridge carries a net product and shipping weight of approximately \u003cb data-path-to-node=\"0\" data-index-in-node=\"1719\"\u003e6.00 to 7.00 pounds\u003c\/b\u003e (about 96 to 112 ounces).\u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":53416227831919,"sku":"R178671","price":338.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/61v-ZSyjACL.jpg?v=1782746093","url":"https:\/\/commercialpoolandspasupplies.com\/products\/pentair-125-sqft-replacement-filter-cartridge","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}