Pentair 355204S Black 1-1/2 HP 3-Phase Square Flange Motor Replacement Inground Pool and Spa Pump 3-Phase square flange motor replacement Fits Pentair WhisperFlo and Challenger high flow inground pool pump model CHII-NI Also fits Pentair Sta-Rite Max-E-Pro series inground pool and spa pump model P6R6E3-207 Operates at 208/230-Volt, 60-Hertz, 1-1/2-horsepower Available in black color; measures 22-1/2-inch length by 11-1/2-inch height by 9-1/4-inch width