9 GPM 12 Volt Ballast Puppy Pump | Jabsco 18220-1127 Run dry ballast pump is designed to quickly fill or drain wakeboard liquid ballast tanks. 12 volt DC operation 9 gallon per minute flow rate @ 5 ft. of total head Provides approximately 80 pounds of water ballast per minute Pump includes run-dry protection feature Self-priming up to 3 feet Reversible to pump water into and out of ballast tanks Includes rocker style reversing switch All bronze pump head for long life expectancy Ports designed with 1 in. hose barbs for 1 in. inside diameter hose and with 1/2 in. NPT female ports for 1/2 in. NPT male fittings Complies with USCG 183.410 and ISO 8846 Marine (Ignition Protection) 12 amp draw 20 amp fuse size 7 1/8 in. length x 4 3/4 in. width x 3 5/8 in. height 6 lbs. Replaces Jabsco 18220-1123