Impeller, Compatible with Brand Taco, Compatible with Grainger Part Number 5CHK7, Compatible with Manufacturer Model Number 2400-50-3P, Compatible with Series 2400-RP, Compatible with Series Family 2400, Impeller Material EPDM; Rubber, Overall Diameter 2.5 in, Compatible with Pump Type In-Line Circulating Pumps, Includes 3P Models