Beckson Marine Sea Kayak Pump - 18"L 8GPM w/Float-a-Pump. A hose can be added for extended discharge. The installed Float-a-Pump provides positive flotation for pumps dropped overboard. Specifications for Beckson Marine Sea Kayak Pump: Manufacturer: Beckson Color: Black Features of Beckson Marine Sea Kayak Pump Diameter: 1-3/4" Length: 18" Strokes per Gallon: 8 strokes Gallon per minute: 8 gallons Mounting clips sold separately Package Contents: Beckson Marine Sea Kayak Pump Beckson Marine 318P1/FPS3R: Sea Kayak Pump - 18"L 8GPM w/Float-a-Pump