Culligan CW5-BBS Heavy Duty Polypropylene Sediment Filter Cartridge for Whole House System, White, 5 Micron
5 Micron Level 4 Heavy Duty Whole House Polypropylene Sediment Filter Cartridge Reduces sediment, rust, scale, dirt, coarse sand, sand, fine sand, extra fine sand and silt. 16,000 gallon capacity 4 month average usage.