Jabsco Engine Cooling Pump 29350-1101.Flange mount – Size 10 (19mm).SpecificationsPump size: 10Mount type: FlangePort hose diameter: 0.78″ (20 mm)Weight: 1.20 kgService Kits and Common PartsService Kit – JSK23-0101Gasket/O-Ring – J1126Impeller – J4528-0001Water Seal – JSP2701-14End Cover Screws – JSP1002-01