Challenger Lifts 10310 4-Post Lift Air Electric WorkstationAir and Electric workstation with filter, lubricator and regulator for Challenger four post car and truck lifts. Increase productivity with air supply and electric outlets on the four post automotive lift column. Convenient power source for extension lights and other tools needed when servicing cars and trucks. Air supply will always be at arms reach for facilities using pneumatic tools such as impact wrenches. This may not be a mandatory accessory,