Drill PumpsJabsco drill pumps provide a very versatile means of transferring fluid almost anywhere an electric drill with 1/4" to 3/8" chuck can be operated. They provide easy powered pumping almost anywhere a hand utility pump might be used. Pumps up to 3.5 gpm Self-priming to 3ft 1/4" diameter shaft Supplied with 3/4" garden hose thread port adapters WARNING: This product can expose you to chemicals including COBALT METAL POWDER which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov. Specifications: Gallons Per Minute: 3.5 GPM Box Dimensions: 3"H x 6"W x 9"L WT: 0.7 lbs UPC: 671880012577 Quick Guide (pdf)