High-volume 12 volt portable air pump inflates and deflates towables, boats, pools, mattresses and beach toys quickly, out-performing most pumps on the marketUniversal valve fittings fit many popular valves including Boston valves and stem valvesFor added convenience, the accessory power plug is equipped with a 10 ft. long power cordVolume is 380 liters/minute; maximum pressure is .71 psi; draws 11.8 amps/145 wattsWe recommend "topping off" large towables inflated with this pump with a few strokes of AIRHEAD's Double Action Hand Pump, PART #4808-0023