It is a 5" canister that can be connected under the kitchen counter in series to the cold supply (removal of solid particles, dechlorination, reduction of heavy metals, etc.). The cross section of the filters is 1/2″ water supply while their increased resistance to high pressure of 10 bar allows their installation in almost every house. It has an expansion valve on the filter head, while the package contains a tightening key, suspension base and wall mounting screws. They are usually equipped with solids filters to remove dirt, rust and sand and activated carbon filters for basic water dechlorination. Accepts all 5″ replacement filters, central supply filters are intended for whole house water filtration, and are placed under the kitchen counter in line with the cold supply. Before buying them, make sure you have access to the central water supply pipe of your house and for their installation it would be good to contact a professional plumber. Their regular maintenance (changing filters) is also important to prevent the water pressure in your home from dropping. Certified by: