- Extends or replaces the chimney that comes with the hood
- For ceilings higher than 9 ft.
- Pulls outside air back into the home
- Works with all hoods greater than 400 CFM
- For use in 6" venting applications
- For 36" cooktop downdraft
- Fits KXD4636YSS Downdraft System
- For 30" cooktop downdraft
- Fits KXD4630YSS Downdraft System
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