The Shoreline Marine Bilge Pump is compact and reliable. It’s fully submersible and easy to install making it a great choice as a replacement pump or adding a secondary bilge pump to your boat. The universal mounting bracket makes the installation easy regardless of your application. This bilge pump is designed tough to stand up to a harsh marine environment. The impeller shaft is stainless steel, the wires are tinned marine grade, the housing is sealed and it’s easy to remove from the mounting base to clean and inspect. The outlet hose barb is 1 1/8” for use with a common 1 1/8” bilge hose and through-hull fitting. It can be wired to on/off switch. Or, you can use a 3-way switch and an automatic float switch for manual/off/auto modes.