What is the "free area" of this 10" wall vent with damper. For my exhaust hood (1200 cfm) it must be 78.5 sq in. Please advise asap. Thank you, Jim Bestor 239-910-3266

Answer:

James, We would need the Model and Serial numbers of your appliance in order to try to locate a Manufacturer's diagram specific for your Model to verify part compatibility 😊 Kind Regards, Customer Support ✨ Supplying Demand