Impeller Compatible with Brand Armstrong Compatible with Grainger Part Number 52CE18 Compatible with Manufacturer Model Number 174035MF-113 174035MF-143 Compatible with Series H-41 Compatible with Series Family S H Impeller Material Plastic Overall Diameter 4.25 in Compatible with Pump Type In-Line Circulating Pumps Includes Gasket Seal Kit Manufacturers Warranty Length 1 yr