Product Description Product Description Product Description The RFC-BBSA Premium Whole House Filter for reduction of extra fine sediment and bad taste and odor to provide visibly clearer, better tasting water. From the Manufacturer The Culligan RFC-BBSA Premium Heavy-Duty Replacement Cartridge reduces chlorine taste and odor and fine (25-micron) sediment. Reduces, silt, rust and scale. It has a radial-flow carbon design for higher flow rates and a filter life up to 3 months or 5,000 gallons. This filter fits Culligan HD-950A . From the Manufacturer The Culligan RFC-BBSA Premium Heavy-Duty Replacement Cartridge reduces chlorine taste and odor and fine (25-micron) sediment. Reduces, silt, rust and scale. It has a radial-flow carbon design for higher flow rates and a filter life up to 3 months or 5,000 gallons. This filter fits Culligan HD-950A . From the Manufacturer The Culligan RFC-BBSA Premium Heavy-Duty Replacement Cartridge reduces chlorine taste and odor and fine (25-micron) sediment. Reduces, silt, rust and scale. It has a radial-flow carbon design for higher flow rates and a filter life up to 3 months or 5,000 gallons. This filter fits Culligan HD-950A .