Broan 639 Wall Cap for 3-1-4 x 10 Duct for Range Hoods & Bath Ventilation Fans Made from high-strength chrome vanadium

Made from high-strength chrome vanadium steel alloy and polished for superior resistance to abrasion and corrosion

Use with Carlon old work boxes B114R or B120R

and 25 wooden plugs

It can be applied to most surfaces with a paintbrush

Broan 639 Wall Cap for 3-1-4 x 10 Duct for Range Hoods & Bath Ventilation Fans Made from high-strength chrome vanadiumOverall 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.