Broan 639 Wall Cap for 3-1-4 x 10 Duct for Range Hoods & Bath Ventilation Fans 9% of germs as it

9% of germs as it neutralizes odors and cuts through grease and tough soil

Ideal for general and light to medium duty use

This 6 Inch Medium Arkansas Stone is mounted on a molded plastic base to make sharpening safe and easy

The 72-tooth 1/4 drive quick release ratchet delivers ultimate fastening power and access to hard-to-reach areas

Broan 639 Wall Cap for 3-1-4 x 10 Duct for Range Hoods & Bath Ventilation Fans 9% of germs as itOverall sizing is 12 3 4 wide x 5 5 8 high. Duct fitting protrudes 4 7 8 from back of cap to allow proper fit to the ductwork (NOT for use with dryer venting). Equipped with a spring loaded backdraft damper and bird screen to keep nests and small animals on the outside. Wall cap is made of 24 gauge CRCQ steel construction with a black electrically bonded epoxy finish for durability and long life.