45° Thinline Outdoor Louver Gable Vent (Wide Frame) - Customizable 6in diameter + Product Details Size –

+ Product Details Size – 18"w X 18"h is the size for the duct opening measurement only

Applications – The flat transition duct 45-degree elbows are used for changing the vertical direction of the rectangular duct

+ Product Description Secure your thermostat with the heavy-duty Beige Metal Thermostat Guard

Actual Filter Size – 31 3/4"w x 11 3/4" x 1"

45° Thinline Outdoor Louver Gable Vent (Wide Frame) - Customizable 6in diameter + Product Details Size –Our 45 Thinline Aluminum Louver Vent Exterior Air Grille for Walls, Gables & Crawlspaces is Weather Resistant with a Wide Flange Frame. Features Wide flange for additional mounting surface coverage Fixed 45 horizontal blades on 3 4" spacing Fully extruded aluminum blades and 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