Combining the best of a HIGH VOLUME HUGE PUMP and a HIGH PRESSURE SUP PUMP you can inflate in stages, optimizing your effort along the way. At the beginning, the Double Action stage moves 6.5L/14Gal every time you pump it. Once the object is full and you begin to feel resistance from the air inside, a switch to Single Action pumps air every time you press down, releasing the resistance when pulling up. This allows you to use your weight while pressing down to pump the first few pounds/PSI's into your inflatable (from 1 to 5PSI). The final stage works in the same way and adds the internal SUP pump to take the effort out of those last remaining pumps. Going from 5 to 25 PSI requires less volume and more force, a perfect job for the Pressure Booster stage!

 Features:

25 PSI MAX

6.5L / 1.4 Gallon MAX Volume

Double Action/Single Action + Pressure Booster Mode

Filtered Intake

Leash & Hook (for windsports)

Hose management system