Characteristic: SUP inflatable valve adapter, easy conversion, quick inflation. The Sup valve adapter is the universal standard for most different canoes, kayaks, paddleboards, inflatable boats, inflatable boats, etc. Please confirm the detailed dimension by the photos. The SUP pump adapter can make the air inflator compatible with your boat or inflatable board. Easy To Use: The boat pump adapter is made of quality plastic and alloy, high pressure resistant, durable in use. When the valve is in the closed position, please insert the valve and turn it to lock it in position. Open the valve cover, and connect an electric pump or a manual pump to the inflatable. Made of high quality: sturdy and durable. Adopt fine workmanship and delicate design, easy conversion. The kayak adapter is made of high quality and alloy material, which has excellent performance of air tightness and anti-leakage for long life use. Robust seal and anti-leak protection. Widely applicable: Universal fits most inflatable boats, river rafts, kayaks, canoes, fishing boats, dinghies, etc. Lightweight and portable, easy. With your electric vane pump adapter or tire pump, it is easy to pump vane to reach suggr in 5-10min.