Description
Old Part Numbers: CV217101AJ, CV221505AJ, CV221505SJ
Check valve, 3/8" compression x 1/2" male NPT with hose barb fitting for 1/4" OD air lines.
If the small unloader (bleeder) valve on or under your pressure switch leaks constantly AFTER the unit shuts off, replace this part. The check valve is a one-way valve that prevents air from backfeeding from the air tank.