KOHLER 24 083 03-S Engine Air Filter For CH18 - CH25, CV18 - CV25, CH730 - CH740 And CV675 - CV740 KOHLER Genuine Part CH18-CH25, CV18-CV25, CH730-CH740 and CV675-CV740; for Command 18HP-25HP 7-inch outside diameter, 5-1/2-inch inside diameter, 2-15/16-inch height Circular Shape Warranty - 90 days against defects in materials or workmanship