This is an OEM replacement 1/2" brass check valve for Senco Brand Air Compressors this also works on various Puma and assorted brands of compressors. To be sure this check valve works with your compressor check the measurments. This valve has 1/2" Male NPT threads on the bottom that go into the tank of your compressor, it also features a 3/8" male flare threaded input on the side for incoming air from the pump that measures 9/16" in diameter at the threads. There is also a 1/8" female NPT port in the side for your unloader line that measures about 3/8" in diameter.

Specifications:

Brass Construction

1/2" Male NPT Into Tank

3/8" Male Flare For Incoming Air From Pump

1/8" FNPT Unloader Port