Beckson 318P1/FPS3R Kayak Hand Pump, 1-3/4" Diameter, 8GPM. Pump is designed specifically with the Sea-Kayaker in mind, this upgraded version of our popular Canoe Pump includes an aluminum reinforcing shaft which prevents the pump shaft from flexing in a rolling sea and won't effect a compass. Float-A-Pump Sleeve installed at the factory, which provides positive flotation for pumps dropped overboard. Mounting clips sold separately.