Brand New Hurricane Filters HF8417-01 Advanced Pool Filter Cartridge - Replacement for Pleatco PA175, Unicel C-8417, Filbur FC-1294, Hayward Star-Clear Plus C1750, C1900, Sta-RIte PXC-175 The Hurricane HF8417-01 Advanced Cartridge Filter is compatible for Unicel: C-8417, Pleatco: PA175, Filbur: FC-1294, Hayward Star-Clear Plus C1750, C1900, Sta-RIte PXC-175, Waterway Proclean 175, 200 and other compatible models. Dimensions: Length 28.1875 inches, outer diameter 8.9375 inches, Top hole 4 inches, Bottom hole 4 inches. Tighter filtration capabilities compared to trilobal media material or classic non woven media. That means a superior filtration of biomass, dirt, debris, hair, leaves and critters to help keep your pool or spa aseptic