Smith SQ1072 0.75HP 115/230V 48Y Frame Square Flange Pool Pump Motor. The AO Smith SQ1072 Pool Pump Motor is a Full Rated Square Flange style motor with a 48Y Frame and is a 115V/230V 3/4 Horsepower Motor. Square Flange motors have a square "face" where the motor mounts to the pump with 4 non-threaded bolt holes to attach the pump and a threaded shaft. 3/4 HP - Full Rated.48Y motor body diameter is 1/2 smaller than 56Y. Arrival time will depend on your location. If you have any questions, feel free to ask.