Get consistently clean, refreshing clean water by regularly replacing the first filter installed in your whole house water filter system or. The Aqua Care 5-microns PP sediment replacement filter reduces sediment and particulate and has a filter life of approximately 3 to 4 months (depends on water quality). Our pp sediment water filter are made of fine melted polypropylene (PP), which is then blown and spun in a cylinder-like form. The main purpose of a sediment water filter is to remove big and fine particles from a main-line water, such as sand, silt, dirt, and other rust particles