Product Description Product Description The R50-BBSA Basic Whole House Filter for the reduction of coarse sediment is designed to reduce coarse sediment to provide visibly clearer water that helps protect your appliances and keeps your faucets flowing freely. From the Manufacturer Culligan's R50-BBS Level-1 Basic Filtration 50 Micron Heavy-Duty replacement sediment filter cartridge reduces sediment, rust, scale, dirt, and coarse sand. This filter cartridge is ideal for high-flow and well-water applications and has a filter life of up to 6 months or 24,000 gallons. From the Manufacturer Culligan's R50-BBS Level-1 Basic Filtration 50 Micron Heavy-Duty replacement sediment filter cartridge reduces sediment, rust, scale, dirt, and coarse sand. This filter cartridge is ideal for high-flow and well-water applications and has a filter life of up to 6 months or 24,000 gallons. 3 Pack