Exact Replacement: This is an exact replacement air valve for an mattress. No Need to Replace the Entire Bladder. Over time, air pump valves can become worn out and lose the ability to hold air. Replacing the old worn-out valve is an economical decision that will prevent you from having to replace the entire air bladder/mattress. What Is Included: This listing is for 1 Replacement Air Valve. The Pump and Air Bladder are not included. Easy, economical repair for a leaking air valve. Original manufacturer's replacement part specifically for Mattresses which features an external pump. This is the air valve only - Mattress, Bladder, and Pump are not included. Instructions are included. Open deflation valve by lifting up on valve tab. Remove old valve by lifting the black plastic on the outer edge of the valve toward the center. The valve will then lift off. Now you are ready to install the replacement valve. To install your new valve, first open the replacement. Once open, seat the hinge area on to the hinge support, then squeeze the vinyl towards the center of the mattress opening. Simply feed the vinyl through the opening of the new valve. Once this has been accomplished make sure there are no bulges in the vinyl. Use your thumb to make sure that it is smooth. Next, lock your replacement shut and you are back in business. Softening the vinyl with a hair dryer before removing and installing the valve can make the process easier. Please note: We do not recommend the as an every-day mattress - only for occasional guest use.