Attwood Tsunami Series bilge and aerator pumps are powered by the same technology platform — a dependable, long-lasting motor cartridge. Cartridges are replaceable and interchangeable. Housing made of rugged, glass and mineral filled polymer that withstands hull pounding and resists chemicals. Easy installation: the bilge pump is secured directly to the hull — no bracket required. 12 volts. 36" wire connector. GPH: 500. Outlet: 3/4" Barbed. Inlet: 3/4". Fuse Size: 3 amp.