Airmaxxx Tow Assist Convenience Package In Cab Air Control. 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. Digital Display 200 PSI Air Gauge with Mounting Bracket. 3 Position Fill/Off/Dump Rocker Switch. Looking For Analog 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.