Karen B Dallas , TX August 04, 2015 Appliance: Model REMOVED THE GREASE FILTER. ON BACK OF HOOD. Old thermador trade wind (30 years) greasy range vent hood needed replacing Searched your website & found the replacement filter that I thought was correct for my old vent hood. 7 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes