The NRS Super Pump High Pressure SUP Pump is the perfect tool to inflate your stand up paddle board or other high pressure or drop-stitch inflatable. The Super Pump can switch between high-volume and high-pressure single or double action that will inflate up to 20 psi, and has an integrated pressure gauge to take the guess work out of inflating your craft. Each single-action stroke puts out 0.48 gallons (1.8 liters) of air. In double-action mode you get 0.96 gallons (3.6 liters) with every full stroke. The Super Pump includes a durable aluminum shaft, a 4-foot hose and interchangeable valve adapters that will work with just about any SUP or IK valve on the market. 2.75″ Dia. x 25″ H