The Skirt Tube is the is the most essential building block of your AirSkirts setup. Depending on your configuration, you may require these tube in an 4, 6, or 8 foot lengths. Our pre-configured packages are perfect for nearly all setups but you can also buy tubes individually and as needed. Each tube is constructed with super-durable .9mm PVC to withstand years and years of use. Inflate / deflate valves on opposing ends enable cross connects of the tubes. A pressure release valve also prevents accidental over-inflation. What diameter / ground clearance do I need?