AIR SWITCH FOR FLAPPING DOOR, AIR VALVE 1/2:", AIR VALVE MODULES, ALL AIR FITTING & TEFLON HOSE, BEARING 2 BOLT FLANGED. BEARING SPROCKET, CHAIN SPROCKET, MAIN AIR REGULATOR, MAIN DRIVE BELT, MAINTENANCE & INSTALLATION CHARGE, SAFETY SWITCH AND SMALL AIR REGULATOR WITH GAUGE