A.O. Smith model USQ1252 Square flange pool filter motor 2 1/2 hp.
Replaces Whisperflo Standard 3450RPM Max-E-Glas II - Up Rate P4EAA6GL Dyna-Max 230 Volts 60hz. 11.2 amps Service Factor 1.00, CCW rotation pump end, stainless steel shaft, threaded, ball bearing. The swimming pool motors have a square mounting face for the pump attachment, with 4 non-threaded bolt holes to attach the pump. Motor has a threaded shaft. This type is common to most Sta-Rite, PacFab, Purex/Trition and WhisperFlo, Challenger inground pool pumps. Single phase and three phase motors. (56Y motor body diameter is 1/2" larger than 48Y)