Old Part Numbers: CTB34343/4" FPT x 3/4" MPT air compressor check valve with 1/8" FPT side port. If the small unloader (bleeder) valve on or under your switch leaks constantly AFTER the unit shuts off, replace this part. The check valve is a one-way...

Old Part Numbers: 1312100406Cut-In/Cut-Out is 145/175 PSI. If your pressure switch is leaking out of the small bleeder valve on the side or if located underneath, order a tank check valve instead, your pressure switch is ok. Note: Order this item for...