Air King RF-34S 7-5/8-Inch Replacement Charcoal Odor Filter for Designer Series Hoods, Silver Finish Replacement charcoal odor filter with a silver finish Compatible with the Air King AV and DS Series Provides duct free operation when used in combination with the RF35S Measures 7-5/8-inches by 7-5/8-inches Comes with a 1-year limited warranty