Zephyr Duct 8 in. Round Exhaust Roof Cap with Bird Screen for Range Hood - Silver

8-inch, 26-Gauge galvanized steel, round exhaust cap with damper for use with a Zephyr 8-inch, round duct. Backdraft damper design prevents air from reverse flowing through the ducts. Included is a built-in bird screen to help keep small animals from entering.