The Water Filter Model# 3US-AS01H/3US-PF01H Home Filter Replacement is a white cartridge with a capacity of 2000 gallons. It is designed for under-sink use and utilizes sediment, sand, and carbon block filtration methods to remove contaminants such as chlorine taste and odor. This home filter replacement is compatible with models 3US-AS01H and 3US-PS01H, providing clean and fresh water for your kitchen needs.