Tsunami MK2 Manual Bilge Pump - T500 - 500 GPH & 12VThe Tsunami Mk2 is the only manual bilge pump that eliminates airlocks. This is done by the Patented X-Air(TM) Impeller, which ejects trapped air in the pump and pipework. Also, the Tsunami Mk2 is the most reliable manual bilge pump in freshwater applications, considering it has 40% better protection against water ingress and electrolysis vs. the Mk1 pump.Easy Installation & Service GPH (Gallons Per Hour): 500 90Adeg rotatable elbow outlet allows users to install the pump anywhere in a full 360Adeg orientation Backward compatible hole pattern and motor cartridges of Tsunami Mk1 bilge and aerator pumps External mounting feet and integrated outlet reduces time and effort Service pump cartridges from hard-to-reach areas using only one hand Specifications: Rated Volts DC: 12V Fuse Size: 3 Amp Wire Length: (inch) 29" / (mm) 735 Hose Diameter: (inch) 3/4" and 1" *Must be used with appropriate Tsunami outlet Specifications: Gallons Per Hour: 500 GPH Operation: Non-Automatic Outlet Size: 3/4" or 1" Type: Pumps/Drives Volts: 12v Box Dimensions: 4"H x 6"W x 7"L WT: 0.8 lbs UPC: 022697023971 Quick Guide (pdf)