This Make-Up Air Kit increases the energy efficiency of any household range hood. Used on hoods with ventilation greater than 400 CFM. The Make-Up Air System improves indoor air quality and range hood performance by replacing the air removed from a room during powerful ventilation.

　　- For use with 3-1/4 in. x 10 in. rectangular venting applications

　　- Works with all hoods greater than 400 CFM

　　- Pulls outside air back into the home

　　- Please check with your local municipalities for requirements.