A gauge before the regulator monitors tank pressure and a gauge after the regulator monitors air-line pressure. In addition, the tank has a safety valve that opens if the pressure switch malfunctions.

This included a 5-gallon Firestone air tank (PN FIP-9191), a Summit 1⁄2-inch Puvex push-to-connect air hose and fitting kit (PN SUM-9010KIT), Viair adjustable pressure regulator (PN VAR-90150 ...