Feature: Inflatable SUP valve adapter, easy conversion, quick inflation. The Sup valve adapter is the universal standard for most different canoes, kayaks, paddle boards, inflatable boats, dinghies, 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 to use. When the valve is in the closed position, please insert the valve and turn it to lock itin position. Open the valve cover, and connect an electric pump or a manual pump for the inflatable. Made of high quality: sturdy and durable. Adopting fine workmanship and delicate design, easy conversion. The kayak adapter is made of high quality and alloy material, which has excellent airtight and anti-leakage performance forlong life use. Robust seal and leak protection. Practical Tool: Kayak accessories are a very useful tool to inflate with a normal gas generator. You don't need to buy an inflator for kayak pump adapters. The boat air valve adapter is lightweight and portable,easy to carry and store.It is widely applicable to various canoe, kayak, etc. 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 paddles to reach suggested in 5-10min.