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