In Cab Air Control w/Outside Dump. TowMaxxx Air Compressor 1/4″ Stainless Steel Braided Leader Hose w/Check Valve Premium 40 Amp Relay w/Wiring Kit 15 Foot Roll of 1/4″ Air Hose Air Hose Cutter w/Threadlocker 1/4NPT Black Outside Dump Air Valve White Face, 200 PSI Air Gauge with Mounting Bracket 3 Position Fill/Off/Dump Rocker Switch. Looking For Digital Gauge? Allows in-cab air pressure control to your tow helper/ load assist kit or single zone air bag system. Durable compressor included quickly fills air directly to bags with a simple push of a switch.