Pentair 150 SqFt Posi-Clear™ RP Cartridge Filter

Pentair Sta-Rite® Posi-Clear™ RP 150 Sq. Ft. Cartridge Filter (160352)

The Pentair Sta-Rite® Posi-Clear™ RP 150 Square Foot Cartridge Filter (Product #: 160352) is an innovative, high-capacity water filtration system expertly engineered to deliver pristine, commercial-grade water clarity for small-to-medium residential swimming pools and heavy-duty spa configurations. Built with a specialized side-entry, "Recessed Pleat" (RP) geometry, the filter features a raised and offset inlet port that generates a highly efficient internal cyclonic flow pattern. This mechanism slings larger debris outward toward the fluted tank walls where it drops harmlessly to the bottom, effectively shielding the interior element and delivering nearly 50% greater operational energy efficiency than traditional single-cartridge filters. The massive 150-square-foot polyester cartridge core maximizes surface area consistency to capture fine particulate matter, algae, and organic contaminants down to 20 microns, which drastically extends the runtime between routine hose-downs. The sleek unibody housing is crafted from chemical-resistant, fiberglass-reinforced polypropylene, providing permanent immunity to rust, long-term UV protection, and exceptional structural resilience under a maximum operating threshold of 50 PSI. Because it retains all trapped debris within its accessible fabric folds, the system eliminates the need for backwashing, conserving thousands of gallons of treated, chemically balanced pool water every season. It features oversized 2-inch quick-connect plumbing unions that eliminate hydraulic bottlenecks, allowing the unit to seamlessly handle a maximum residential design flow rate of up to 150 gallons per minute (GPM) when paired with energy-saving variable speed pumps. Routine filter maintenance is highly simplified by a low-force diamond-seal lock ring with built-in spring-loaded safety latches that click firmly to confirm a secure closure, a continuous High Flow™ internal air relief valve, and a generous bottom drain plug for fast, effortless winterization. The dry weight of the Pentair Posi-Clear RP 150 Cartridge Filter is approximately 35 pounds, providing pool owners with an exceptionally durable, lightweight, and eco-conscious powerhouse for advanced water quality management.