Thermoplastic with vertical float switch. Pumps up to 2800 GPH at 5', reliable thermoplastic volute and impeller, corrosion-resistant thermoplastic column and stainless steel fasteners, adjustable vertical float allows homeowners to change the operating cycle to fit their application, heavy-duty, air-cooled motor is thermally protected to prevent overheating, high capacity 1-1/2" NPT discharge. Will replace most submersible sumps without plumbing changes. Designed for 14" diameter or larger sump basins.Pumps up to 3200 gph at 0'.