Found in most cheap compressors from home depot and harbor freight
IF YOU COMPRESSOR IS LEAKING AIR BACK THROUGH THE COMPRESSOR OR PRESSURE SWITCH UNLOADER, YOU NEED A NEW CHECK VALVE.
This one is a 90 degree 1/2 NPT pipe thread (not 1/2 diameter) X flare on the compressor side
Usually for a small portable compressor
DON'T KNOW WHAT PIPE SIZE YOU HAVE?
YOUR LOCAL HARDWARE STORE CAN HELP
IN TANK CHECK VALVE 90 degree 1/2 npt small compressor
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