Culligan Extra Fine Sediment Water Filter Cartridge is specially designed to effectively remove extra fine sediment such as dirt, sand, silt, rust, and scale particles from your water supply. Featuring a 5 micron nominal filtration, this filter cartridge ensures cleaner and clearer water for your home. It a filter life of up to 4 months or 16,000 gallons, providing long-lasting performance and reliability. This cartridge is compatible with Culligan models HD-950A and HD-950, making it a for maintaining your water filtration system’s efficiency. Model Number: CW5-BBS