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. 1 HP - Energy Efficient.
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. Smith QC1102 1HP 115/230V 48Y Frame Square Flange Pool Pump Motor" is in sale since Saturday, September 19, 2020.This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Pool Equipment & Parts\Pool Pumps".281" and is located in Tampa, Florida. This item can be shipped worldwide.