Brand New Hurricane Filters 2 Pack HF-MICR-01 Advanced Spa Filter Cartridge - Replacement for PPS750, Filbur FC-2812, Sundance Microclean Depth Filter The Hurricane HFMICR-01 Cartridge Filter is compatible for Prb17.5SF, Filbur: FC-2386, Sundance Microclean Depth Filter and other compatible models. Original manufacturer's names and part numbers are for reference only. Look for the Hurricane Filters exclusive turquoise end caps to ensure you're getting a premier filter made in the USA. DIMENSIONS - We manufacture to tighter tolerances than other pool filter brands. This product measures: Length 5 inches, outer diameter 8.5 inches, Top hole 4.75 inches, Bottom hole 4.75 inches. Measure your current filter's dimensions if you're unsure of product fit. SUPERIOR FILTRATION – Our advanced point bond filter media has 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