In-line expansion tank for seating and inflating tubeless tires Tank is filled with a standard pump and can hold up to 230 psi Integrated pump hose on the bottom of the tank connects to a presta valve and provides the burst of air needed to seat tubeless tires Foot switch operation leaves hands free to ensure the bead is seating correctly Great for on the road or trail head where you don`t have access to a compressor Tank must be filled to a minimum of 145 psi to operate Includes a presta valve core remover for easy inflation and sealant use Tubeless Tank Presta 230psi Black