Description
Old Part Numbers: 1238T, CTB3812, CV003207AV-MAT
Check Valve CTB3812 for air compressors. 3/8" FPT x 1/2" MPT 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 valve that prevents air from back-feeding from the air tank.
Extra Details
NOTE: For Emglo units, order this check valve if you have the AM39/AM390 "HC2" or AM40 "HC2" models (and "HC4V" without SN# prefix "A").