Air Filter / Kohler 47 083 01-SPack Size:1Kohler 47 083 01-SDealer Choice 15-1205, Donaldson P530635, Landscaper Express 5108301, Napa 2296Kohler KT Series Square Style, CH11-CH16, CH410-CH450 and Magnum M18-M20; for 18 thru 20 HP enginesID: 5 1/2 ", OD: 7 ", Height: 1 3/4 "