Canoe/Kayak PumpFeatures:Diameter: 1-3/4 Length: 18 Strokes per Gallon: 8 strokes Gallon per minute: 8 gallons Mounting clips sold separately WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.