WW20BB, dual stage 20” in-line set: filter housing, with pressure relief valve and transparent sump, mounting bracket with screws, wrench and filter cartridges. Pure water for daily household needs. Good clean water from all your taps and you will shower and bath with pure and clean water. Perfect for houses with 2 or more residents. Furthermore your home appliances and heating systems will work longer, and you'll also protect the pipes. Capacity between 185,000 to 200,000 litres (200m3) or up to one year. It removes all sediment, bacteria, chemicals, heavy metals and of course chlorine.