30° Thinline Outdoor Louver Gable Vent (Channel Frame) - Customizable 6" Round Duct Pipe while the ingenious dial-controlled damper

while the ingenious dial-controlled damper empowers you to effortlessly regulate airflow using your foot

+ Product Details Size - 12"W X 4"H is (for duct opening measurement only)

and practicality

Actual Front End Outer Dimensions Are 2

quiet airflow

30° Thinline Outdoor Louver Gable Vent (Channel Frame) - Customizable 6" Round Duct Pipe while the ingenious dial-controlled damperOur 30 Thinline Aluminum Louver Vent Exterior Air Grille for Walls, Gables & Crawlspaces is Weather Resistant with a Channel Frame. Features Fixed 30 horizontal blades on 3 4" spacing. Fully extruded aluminum blades and channel frame. Supports are hidden behind blades for a clean appearance. Bird screen is standard or optional insect screen. Available in 1" standard dimension increments. Custom sizes manufactured up to 1 16" increments. Mounting