Cyclonic Air Filter ElementFits Confidant Engines Equipped with "Heavy Duty Air Cleaner" (HDAC) FeatureConfidant HDAC ZT710-ZT740Item: 16 083 01-SSize: 4.9" OD x 6.8" HCylinder: TwinHorsepower: 19-25 hpKit Contents: 16 789 01-S