WAYNE WST30 3/10 HP Reinforced Thermoplastic Submersible Sump Pump With Tether Float Switch Assembled in the US with foreign and domestic parts. Reinforced thermoplastic motor housing and pump housing will not corrode or rust Replaceable tether switch for automatic operation and allows installation in sump basins 14" in diameter or larger High capacity 1-1/2" npt discharge Top suction strainer filters debris Reinforced thermoplastic motor housing and pump housing will not corrode or rust Replaceable tether switch for automatic operation and allows installation in sump basins 14" in diameter or larger High capacity 1-1/2" NPT discharge Top suction strainer filters debris Piggyback switch allows automatic or manual operation.