Rainfresh whole house filter with bypass valve reduces sediment, giving you clean fresh water throughout the home. It features a built-in ON/OFF/BYPASS valve that makes installation easier and quicker as there is no need for an additional shut-off valve. The built-in valve also makes cartridge changes extremely easy by simply turning the handle. Rainfresh whole house filter with bypass valve can be used on any water source, well, lake, river or municipally treated and is ideal for homes, cottage/cabins, farms, offices, boats or RV.