BECKSON MARINE Beckson Canoe & Kayak Pump - 18" L, 8GPM Canoe/Kayak Pump; Mounting clips sold separately; Gallons Per Hour: 480; Gallons Per Minute: 8 Diameter: 1-3/4" Length: 18" Strokes per Gallon: 8 strokes Gallon per minute: 8 gallons