From the Manufacturer
Constructed with quality and good looks, the F40000 is superior to the competition whether ducted vertically, horizontally, or non-ducted. Two speed fan control. Polymeric blade and light lens (accepts up to 75W bulb). Washable aluminum filter. Converts to non-ducted by removing convert plate from front of hood and installing the non-ducted filter (purchase separately). Mitered sides and hemmed bottom for safety and good looks. Damper/Duct connector included (more...)