NEW and IMPROVED! Runs your air lockers for off-road, or track with no noise, no wires, and no motor to burn out. One 20 oz. bottle of CO2 can actuate a Dana 60 (500) times. The second bottle serves as a back up and fits neatly in your glove box. The ARB Jet Pak 2 now comes with an adjustable regulator for those who might want to run a higher-than-80 PSI pressure to your ARBs. You can also dial it down to operate Jeep Rubicon lockers. The Sidearm COMP regulator goes from 0 to 160 PSI. The built-in pressure release valve is set to 120 PSI but can be changed if needed. The Kit comes with the Sidearm COMP regulator, two 20 oz. CO2 bottles with manual on/off valves, a zippered storage bag for the spare bottle, and an aluminum Super Bracket to mount the main bottle to a roll bar of flat surface. This Kit works with our air toggle switches (#ARB-2060, 2070) for a fully pneumatic system or with our ARB connection kit (#ARB-2070) if you want to use your ARB electric switches. Either way works great!