Caleffi Automatic Filling Valve Backflow Prevention Pre-Set 1/2" Press Union Inlet X 1/2" Inside Npt Outlet 573007A

The Caleffi 573007A Automatic Filling Valve features a 1/2" press union inlet and 1/2" female NPT outlet with a backflow preventer to maintain system pressure and prevent reverse flow in HVAC systems. It is pre-adjustable for precise installation.