https://www.campingworld.com/overton%27s-air-pump-nozzle-adapter-for-lightning-valve-321716.html
Overton's Air Pump Nozzle / Adapter For Lightning Valve
Universal adapter attaches to Overton's high pressure pumps for easy connection to the Lightning valve (1/2" OD) on towable tubes and other inflatables.
air pump nozzle adapterovertonlightningvalve