Pentair 75, 150 and 200 SqFt Clean & Clear Tank Lid

The Pentair 75, 150, and 200 SqFt Clean & Clear Tank Lid (part number 178553) is a heavy-duty upper pressure vessel dome engineered specifically for mid-to-high capacity Pentair Clean & Clear and Predator single-cartridge pool and spa filtration systems configured in 75, 150, and 200 square foot media sizes. Injection-molded from a thick, fiberglass-reinforced polypropylene composite in an original equipment manufacturer (OEM) almond hue, this structural dome serves as the secure top enclosure for the filtration network. Its primary operational and structural role is to form an absolute airtight and watertight pressure capsule when joined with the lower tank bottom and locked tightly by the main clamp assembly, allowing the filter to safely contain high-velocity hydraulic water flows and internal operating pressures up to 50 PSI without expanding, bowing, or weeping. The apex of the lid is engineered with reinforced, threaded ports designed to house the system's manual air relief valve and pressure gauge, enabling safe pressure management and routine maintenance. Built to endure relentless outdoor UV weathering, intense solar heat, severe seasonal temperature shifts, and prolonged exposure to concentrated pool sanitizers like chlorine, bromine, and seasonal acid washes, this robust upper shell prevents catastrophic pressure failure or structural cracking. Due to its thick-walled, reinforced polymer architecture required to span a wide circumference and withstand intense hydraulic stress, this individual tank lid carries a product and shipping weight of approximately 10.50 pounds.