Rugged and reliable pump that has become an industry standard. This Rule Industries' Non-Automatic Submersible Electric BilgePump offers great performance at a value price. Suitable for use on commercial and recreational vessels, thissubmersible pump features a motor with a stainless-steel shaft,water cooling and a vibration-free centrifugal impellerthat won't burn out if run dry. The strainer base allows tool-less removal of the pump body for cleaning. Installation requires a panelswitch for manual operation or a float switch forautomatic operation. Key Features High volume submersible bilge pump Base/strainer allows pump removal without tools for easier cleaning Rugged ABS plastic housing for a long service life. Can run dry without damage Vibration-free design for reduced noise Requires float switch and/or panel switch Dimensions: 4 1/4" diameter x 6"H Owners Manual