AIRHEAD AHSUP-A022 Super High 12V/20 PSI Pressure Air Pump Great for stand up paddleboards, boats, and any inflatable with drop stitch that requires high pressure Two stage high pressure inflation/deflation Car light style plug included Alligator clips cable for direct battery connection Interchangeable H-Valve and Boston Valve adapters Just dial in the pressure, 1-20 psi and walk away. Car lighter style plug for 20 amp outlets Plenty of pressure for inflatable SUPs!. 2 stage high pressure inflation & deflation 12 volt, connects to battery with alligator clips. Alligator clips cable for direct battery connection Inflate SUPs to 15 psi in approximately 5 minutes. Interchangeable H-Valve and Boston Valve adapters Ideal for inflatable SUPs, boats & other drop stitch inflatables requiring high pressure A weak battery, or a DC 12V with a rating of less than 20 amps will also cause the pump not to operate properly Kindly refer to the Secondary Images for User Guide