NitrileRecommended for a wide range of oils, oil and water emulsions, diesel fuel, lower fraction hydrocarbons, kerosene, lubricating and machine cutting oil.SpecificationsImpeller material: NitrileInsert material: BrassTemperature range: 50 degree F (10 degree C) to 180 degree F (82.2 degree C)Drive type: FlatDrive size: 4Number of blades: 8Diameter: 1 1/4″ (32 mm)Width: 15/32″ (12 mm)Shaft diameter: 5/16″ (8 mm)Weight: 0.02 kgSuits EnginesYanmar – 1GM10