This Airline Kit comes with all the accessories you need to connect both of your rolling bridge jacks to your air compressor with ease. The AK-14 Airline Kit comes with adapter fittings that allow you to connect airlines to your rolling bridge jack air/hydraulic pumps. With the fittings installed, you'll only need one hose to provide air for both of your rolling bridge jacks. Not only does this simplify the process, but the fittings in the Airline Kit also allow you to hide the airline up and away, mounting the airlines securely to the bottom of your lift's runways. Messy airlines not only look bad, but they are a major tripping hazard. The Airline Kit gives you peace of mind while you work, and comes with everything you need to give your four-post lift, and your shop, a clean and efficient setup! All Air Line Kit Models 5174008 - Airline Kit for XR Series Scissors Lifts 5174009 - Airline Kit for HD-9/HD-14 5174010 - Airline Kit for HD-18/27/35