KOHLER 47 083 03-S Engine Air Filter For K361, CH18, CH20, CH25 And CV17 - CV22 KOHLER Genuine Part For CV17-CV23, CV724-CV740, CH18-25 and CH730-740 Circular shape 7-inch outside diameter, 5-1/2-inch inside diameter, 2-1/2-inch height Warranty - 90 days against defects in materials or workmanship