Sanborn Coleman 031-0035 Check Valve 1/2 Inlet Compression X 1/2 MPT Outlet

The Sanborn Coleman 031-0035 is a one-way check valve for plumbing, featuring a 1/2 in compression inlet and a 1/2 in male pipe thread (MPT) outlet. It prevents reverse flow in supply lines, helping protect downstream fixtures and equipment from backflow. The valve accepts a standard 1/2 in compression connection on the inlet and mates to a 1/2 in MPT outlet, enabling compatibility with common residential or light commercial piping and fittings. Use this valve in lines where unidirectional flow is required and where a compression-to-MPT connection makes installation straightforward.