2-Pack - Culligan R50-BBSA Heavy Duty Compatible Sediment Filter.Also replaces DuPont WFHDC3001 and GE FXHSC Whole House Filters Replacement sediment filter cartridge removes coarse sand, rust, and scale particles from water; 5 micron filtration; Durable, pleated polyester construction.This filter cartridge is ideal for high-flow and well-water applications and has a filter life of up to 6 months or 24, 0ls.