The new Orca 500 electric bilge pump from Whale has a compact design so is easy to fit into small bilge spaces. Low amp draw means a longer battery life and the large filter base ensures that the maximum surface is exposed to the bilge water. Multiple wire locations and extra long wires make for a simple installation. 500GPH. Hose connections: 19mm (3/4"). Dimensions: 83mm(H) x 102mm(W) x 78mm(D).