53-0020 Zoeller M53 Mighty-Mate Automatic Cast Iron Effluent Pump, 115V, 0.3 HP Features:Float operated, submersible (NEMA 6) 2 pole mechanical switch & variable level long cycle systems availableCorrosion resistant powder coated epoxy finishNo sheet metal parts to rust or corrodeStainless steel screws, switch arm, guard and handleNo screens to clogWatertight neoprene square ring between motor and pump housingSolid buoyant polypropylene floatOil-filled, hermetically sealed, automatic reset thermal overload protected motorUpper and lower sleeve bearings running in bath of oilEntire unit pressure tested after assemblyCarbon and ceramic shaft sealMaximum temperature for effluent or dewatering 130°F (54°C)Passes 1/2" spherical solids1-1/2" NPT dischargeOn point: 7-1/4", Off point: 3"Watertight and dust tightPermanently oiled bearingsImpeller Type: Non-clogging vortex impellerReserve Powered Design Model 53 Cast iron switch case, motor and pump housingEngineered thermoplastic baseEngineered, glass filled, plastic impeller with metal insertStainless steel guard and handleLower and upper bearings, oil fed cast iron