PF 100sqft Clean&Clear Cartridge Filter Clean and Clear® Filters feature a chemical resistant tank with no-tool servicing and a coreless cartridge for easier cleaning. All models are equipped with easy spin-on unions for plumbing hook-ups. These filters are NSF listed for commercial applications and are available in 50, 75, 100, 150, and 200 square foot sizes. Features NSF listed Unionized connections Integrated continuous High Flow™ internal air relief* Chemical resistant tank body Lock ring with spring-loaded safety latches Coreless cartridge for easy cleaning High Flow manual air relief valve 1 in. drain and wash out Single piece base and body design