{"product_id":"pentair-75-sqft-clean-clear-tank-bottom","title":"Pentair 75 SqFt Clean \u0026 Clear Tank Bottom","description":"\u003cp data-path-to-node=\"0\"\u003eThe Pentair 75 SqFt Clean \u0026amp; Clear Tank Bottom (part number 178560 or 178560Z) is a fundamental internal structural containment component engineered exclusively for the lower chassis of residential pool and spa cartridge filtration systems. This replacement tank bottom is standard hardware specifically for the 75-square-foot Pentair Clean \u0026amp; Clear cartridge filter model (CC75).\u003c\/p\u003e\n\u003cp data-path-to-node=\"1\"\u003eInjection-molded from a heavy-walled, glass-reinforced engineering polymer composite, this deep-molded basin functions as the primary load-bearing foundation for the entire pressurized filtration system. Its primary operational role is to anchor the interior plumbing matrix while securely cradling the vertical 75-square-foot cartridge element. The perimeter of the lower basin features a thick-walled mating rim designed to align perfectly with the upper tank lid, creating an absolute watertight and airtight compression boundary when locked together by the system's heavy-duty tension ring assembly. This robust engineering enables the pressurized vessel to safely handle high-velocity hydraulic circulation and sustain continuous internal operating pressures up to 50 PSI without weeping, flexing, or risking structural joint separation under heavy pump startup surges.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eThe lower base of the tank bottom incorporates integrated, precision-molded port openings configured to house the filter's primary inlet and outlet bulkhead adapters, as well as the specialized lower gravity drain plug assembly. This strategic layout allows for smooth, low-restriction water flow during active filtration, while enabling complete, tools-free water evacuation during seasonal winterization or routine element cleaning. Engineered to endure decades of demanding outdoor equipment pad weathering, direct UV exposure, soil chemistry, and intense seasonal temperature shifts, its rugged composite matrix completely resists material softening, structural deformation, stress-cracking, and corrosive bleaching from direct contact with highly concentrated sanitizers like chlorine, bromine, and salt-chlorine generator outputs. Due to its wide-diameter, thick-gauge reinforced plastic structural profile, this individual replacement tank bottom carries a net product and shipping weight of approximately \u003cb data-path-to-node=\"2\" data-index-in-node=\"1013\"\u003e7.00 to 8.50 pounds\u003c\/b\u003e.\u003c\/p\u003e","brand":"Commercial Pool and Spa Supplies","offers":[{"title":"Default Title","offer_id":53416219508847,"sku":"178554","price":532.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/3785\/3807\/files\/178562__12309.jpg?v=1782745981","url":"https:\/\/commercialpoolandspasupplies.com\/products\/pentair-75-sqft-clean-clear-tank-bottom","provider":"Commercial Pool and Spa Supplies ","version":"1.0","type":"link"}