The Kohler 47 083 01-S Air Filter is designed for use with Kohler engines in the CH11-CH16, CH410-CH450 series. This gas-powered air filter is compatible with 20 HP engines and is sold individually. With a voltage of 12 V, this air filter is an essential component for maintaining the performance and longevity of your lawn mower or outdoor power equipment. Trust the Kohler brand to provide high-quality parts that are specifically designed for your engine. Box is a bit rough, but contents are perfectly fine.