Stearns Double Action Hand River Boat Pump inflates twice as fast at an AFFORDABLE PRICE! Super-fast double action! This Double Action Hand / River Boat Pump is made by the outdoor pros at Stearns. Perfect for all your inflatable needs it has a universal valve fitting. Fast acting double action moves 66 gallons of air in 60 strokes, inflates or deflates with ease. More: 4 liter stroke volume (250 liters per minute); 14 3/4 PSI; Approx. 15 x 7 1/2" dia. Pump up your outdoor fun. Order Today! Stearns Double Action Hand River Boat Pump