Boaters, boat-builders, and dealers all want one thing from their bilge pumps — more power! And that’s what the Tsunami® Series delivers… with high-capacity, high-efficiency output Tsunami Cartridge pumps have replaceable / interchangeable motor cores. Makes servicing simple and quick. Backed by Attwood’s 3-Year Warranty! Outlet Style/ I.D. Diameter: Barbed – 1 1/8″. 12-Volts. 36″ Wire.