DESC: Attwood Tsunami Cartridge 1 1/8" Bilge Pump 1200 GPH. This Attwood bilge pump is powered by the same technology platform - a dependable, long-lasting motor cartridge. This pump cartridge is replaceable and interchangeable. This bilge pump housing is 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. Outlet Style & Model: T1200. Fuse Pump: Bilge. ID Diameter: Barbed – 1 1/8". Fuse Size: 5. Size: 1 1/8". 36" wire connector. 12 volts.