Barnes SU33 1/3HP 3450 RPM SHUR-Switch Series Thermoplastic Residential Sump Pump Residential Submersible Sump with a vertical float design that works in spaces as small as 14" in diameter Constructed of heavy duty Thermoplastic with a Cast Iron motor housing 1.5" discharge and can handle solids up to 3/16" with 35GPH max Built-in magnetic float switch that activates the pump once the water level reaches the desired height If the water level drops, the magnetic float will return to its original position, turning the pump off