Model SPT33 features mercury-free tethered switches that are adjustable for various on/off levels. Also features a high performance 1/3 HP motor. U.S.A. Flow (GPH): 3,300 @ 5ft., HP: 1/3, Discharge Port (in.): 1 1/2, On-Level (in.): 12, Off-Level (in.): 7, Min. Basin Needed (in.): 15, Pump Housing: Cast Iron, Corrosion-Res...