Seal Kit, Compatible with Pump Type Condensate Return & Boiler Feed Pumps, Compatible with Series C-35, Compatible with Series Family HC, Includes Gasket, Seal, Compatible with Brand Hoffman Specialty, Compatible with Manufacturer Model Number 617PF, 617PF-B, 620PF, 620PF-B, 625PF, 625PF-B, 626PF, 626PF-B, 627PF, 627PF-B