Challenger Lifts 40230-X Extended Air Line Kit for Four Post LiftsChallenger Lifts 40230 X Extended Air Line Kit for Four Post Lifts Challenger's Airline Kits mount and secure your airline to the bottom of your 14,000 lbs. or 15,000 lbs. four post lift's runways, creating an elegant airline solution for our optional rolling jacks. One airline kit provides air for two jacks. For Use With Challenger Lift Models 4P14 and 4115 Standard Series Four Post Lifts So, if you are purchasing a Challenger four post lift, whether