The Power Tank Jet Pack 2 for ARB is the air locker air system that serious off road rock crawlers choose for their vehicles. Featuring several advantages over the competition, the Power Tank Jet Pack 2 air lockers are completely silent, have no wires, and no motor to burn out. The simple design is another advantage to the Jet Pak 2. The first 20 oz. bottle of CO2 is able to actuate a Dana 60 axle 500 times. The second bottle serves as a back up and fits conveniently in tight spaces, such as a glove box. The ARB Jet Pak 2 is complete with an adjustable regulator for those who deliver more than 80 PSI of pressure to the ARBs. Dialing the Jet Pak down to operate Jeep Rubicon lockers is an option, as well. The Sidearm COMP regulator goes from 0 to 160 PSI, providing a range of options. The built-in pressure release valve has a default setting of 120 PSI but can be adjusted as needed. The Jet Pak 2 air system kit comes with the Sidearm COMP regulator, two 20 oz. CO2 bottles with manual on/off valves, a zippered storage bag to store the spare bottle, and an aluminum super bracket for mounting the main bottle to a roll bar of flat surface. This kit works with the Power Tank air toggle switches (#ARB-2060, 2070) for a fully pneumaticsystem or with the Power Tank ARB connection kit (#ARB-2070).