SportsStuff LP1 Double Action Hand Pump

This double action air pump inflates and deflates towable tubes, kayaks, boats, airbeds, and other inflatables. It delivers a continuous stream of air on both the up and down strokes. Simply turn the release valve counter-clockwise and you're pumping air only on the down-stroke. This is a great option when your inflatable is almost full and there's back pressure. Four universal valve fittings are included to fit Boston valves and stem valves. The accordion-style hose stretches to 5' (152.4 cm) long and interlocks to the pump, so that it doesn't fall off while you're pumping. Volume is 122 cubic inches/ stroke (2 liters/stroke). Very effective for "topping off" large towable tubes in the boat, since peak pressure is an impressive 14 psi (.97 bar). Pump measures (W x H x L) 8.56" x 4.5" x 18.75 (21.75 cm x 11.4 cm x 487.6 cm).