Caleffi Automatic Filling Valve Backflow Prevention Pre-Set 1/2" Press Union Inlet X 1/2" Internal Npt Outlet 573006A

The Caleffi 573006A Automatic Filling Valve features a 1/2" press union inlet and 1/2" inside NPT outlet with a backflow preventer, designed for press to NPT conversion and pre-adjustable system pressure control in heating and cooling systems.