The Air Compressor Pressure Switch can be installed on different air compressors. Made of high-quality ABS plastic, the housing is strong and not easy to break. With the air pressure switch adjustment button, it is more convenient to operate. Rotary fitting with joint thread for more safe and reliable installation. Three-hole air pressure switch and single-hole air pressure switch are available. Strong plastic shell and great performance. – Four-port manifold configuration allows for easy installation. Used to regulate tank pressure between two preset values on Standard electric air compressors. Fitted with auto On/Off button for manual compressor shut off.