Heavy duty cast iron construction, A, O, Smith, 2-compartment, square flange, dual voltage 115/230 volt motor with thermal overload protection, Rugged one-piece, close grain cast iron pump body and seal plate with drain port, Silicon bronze impeller with shaft seals, 416 stainless steel shaft, Carbon/ceramic and Buna-N seals, Replaceable wear ring and back pull-out design for easy serviceability, Maximum temperature: 225F, UL listed, Amps: 8, 8/4, 4, Suction Line Size: 1-1/4"", Volts: 115/230, SKU: HMREX761