VEVOR Seat Suspension Kit Without Seat Slider Track, Universal Air Ride Seat Suspension for Zero Turn Lawn Mower, with Dustcover, Tractor Seat Suspension ‎Kit for Forklift, Bulldozers

Hello, this VEVOR seat suspension kit (Model: JZ-7) is spring-based mechanical suspension only and does not include an air supply or air suspension system. This product relies on a built-in coil spring for vibration damping and does not require or come with any air supply components, air bags, or air compressors. You can confirm this from the product specifications on the page, which do not list any air-related parts. Thank you for your inquiry.