Impeller Compatible with Brand Armstrong Compatible with Grainger Part Number 52CE12 52CE13 Compatible with Manufacturer Model Number 106285MF-132 106285MF-133 106285MF-136A 106285MF-137A 116451MF-132 116452MF-133 116455MF-136A 116456MF-137A Compatible with Series 1050-2 H-54 S-57 Compatible with Series Family 1050 1060 S H Impeller Material Plastic Overall Diameter 5.25 in Compatible with Pump Type In-Line Circulating Pumps Includes Gasket Seal Kit