Circulating Pump Motor, Compatible with Brand Armstrong, Compatible with Grainger Part Number 32UM80, 32UM81, 32UM82, 32UM83, Compatible with Manufacturer Model Number 116475-132, 116476LF-133, 116479-136A, 116480LF-137A, Compatible with Pump Type In-Line Circulating Pumps, Compatible with Series 116475-132, 116479-136A, 1164870LF-133, 1164870LF-137, Compatible with Series Family 1050 1.5B, 1060 1.5D, 2B, 2D, H-54, H-64, H-66, S-57, Horsepower 3/4, Maximum Ambient Temperature 122 Degrees F