Available to print is a kayak air valve plug/adapter. It allows you to connect your pump to the valve of an inflatable kayak or inflatable sup; or any other inflatable device that has the correct valve. I use this for my inflatable kayak and it works great! I have a zoik inflatable kayak and aire tomcat kayak. This adapter will connect to the air valves. Print the actual adapter piece with PLA or any solid plastic with 100% infill. Print the seal with ninja flex or any other flexible filament with 100% infill. Attach the female end directly to your pump's hose or connect it up to a piece of garden hose. Happy kayaking!