Brand new DAC-252 brass in tank check valve. This is a 5/8" compression x 1/2" male NPT check valve. This valve is compatible with Craftsman, Porter Cable, Devilbiss and more! This is a solid brass high quality replacement check valve made in the USA by the Conrader Co. This valve features a 5/8" compression fitting for air intake from your compressor pump and has 1/2" male NPT threads that go into the tank. There is also a 1/8" female NPT unloader port in the side of the valve.