This triple-action SUP pump from Jobe is designed to inflate SUPs to pressures up to 20 PSI quickly and easily! It includes two 3.5-liter double-action cylinders, a pressure gauge to maintain control, and a Halkey Roberts mouthpiece that goes well with all the inflatable boards Jobe has on the market. The Jobe Triple Action SUP Pump has three different modes of operation to make it easy to inflate at any stage: Double Action with 2 cylinders that inflates your SUP up to 5 PSI. Simple action with 2 cylinders that allows you to inflate your SUP up to 10 PSI at a moderate speed. Single action with 1 cylinder to inflate your SUP up to a maximum of 21 PSI with minimal effort.