Builder's Best 84035 Galvanized Steel Roof Vent Cap with Damper & Removable Screen, 4" Diameter Collar, Black

This 84035 Black Metal Roof Vent Cap is designed for use with range hood and bath fan exhaust. It is 26 gauge galvanized steel with a black powder coat finish. This 4-inch version includes a removable 1/4 x 1/4 inch screen and a removable backdraft flapper. Builder's Best black metal roof caps begin with galvanized steel which has some corrosion protection. The high performance polyester powder coating shows very little corrosion when subjected to the ASTM B117. These roof caps have been tested for 480 hours (20 days) with a sodium chloride (salt) solution to accelerate a corrosion process. (ASTM B117 tests conducted by a third party lab. ) These roof caps performed much better than the leading brand (painted steel) and a foreign brand (painted galvanized). The Black Metal Roof Vent Caps are built in the USA by Builder's Best.

• Extremely Durable: This is a heavy duty 26 gauge galvanized roof vent hood with a high performance polyester powder coated finish.
• Protection Against Corrosion: Our vent caps are ASTM B117 tested for anti-corrosive properties, showing very little or no signs of corrosion on our high performance polyester powder coated galvanized steel surface. Other leading and foreign brands have little or no corrosive protection.
• Features: Riveted construction; does not use caulk. Includes pre-drilled holes for easy mounting. Vent also comes with a flapper (damper) that prevents back drafts.
• Ideal for bathroom or kitchen vents. Screens are removable so that caps can be used for venting clothes dryers as well.
• Quality made in the USA by Builder's Best, Inc. Builder's Best brand is a US registered trademark.