Remove sand, rust, and scale before it hits your vehicle! Insert the Sediment Filter Cartridge into your Clear Inline Hose Filter Canister to remove scratch-causing debris from your wash and rinse water. With this filter unit added to your standard water hose, the water from your exterior spigot will always be clean and clear. The sediment filter is a must for those of you with well water! This cartridge is made of 25 micron spun poly. It traps fine sediment as the water passes through so that nothing hits your vehicle but pure water. If you don't have a hard water problem, this cartridge is all you need. By purchasing this two pack, you can change out a dirty filter at a moment's notice and keep on washing. Discontinued.