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cartridge-friendly interface simplifies installation with Star-Clear Plus elements
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no electrical current runs to the button itself
and hot tubs
Point-bond filtration media provides tighter filtration than trilobal or nonwoven media
Hurricane HF4637-01 Premium Spa Filter Cartridge for Pleatco PRB37-IN air relief valves cartridge-friendly interface simplifies installation withHurricane HF4637 01 Premium Spa Filter Cartridge Drop in replacement filter cartridge delivering 37 square feet of spa filtration for systems that require Pleatco PRB37 IN. Compatible with Pleatco PRB37 IN, Unicel C 4637, Filbur FC 2380, Rainbow Dynamic 37 (Series IIV RTL 25), Leisure Bay Spas, Morgan Spas, and Waterway housings. Exclusive turquoise end caps signal Hurricane quality and USA made construction. Replacement compatibility: Replaces
