Air Filter Combo / Kohler 47 883 01-S1Pack Size:1Kohler 47 883 01-S1, Kohler 47 883 01J. Thomas 47-883-01, 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 ", Pre-filter included