The multi-valve consists of two Boston valves with different thread patterns on the bottom and a Shrader valve. One of the Boston valves will fit the thread pattern of your inflatable, regardless of the brand. Use the Shrader valve to inflate quickly at a gas station or with an air compressor. Alternatively, screw off the Shrader valve and inflate the Boston valve with the Yamaha 12-Volt Air Pump (MAR-12VPU-MP-06).