Description Turns compressor on at any pressure lower than 145 PSI, and shuts the compressor off at 175 PSI or higher. Threads are 1/8″ MNPT. NOTE: This pressure switch is only recommended for the Viair 380C (16380) and Viair 480C (16480) compressors. Air Pressure Switch; 145-175 PSI; Air Pressure Switch
