30° Thinline Outdoor Louver Gable Vent (Flange Frame) - Customizable Extruded Aluminum Ceiling R6 Fiberglass Back Plenum accepts

R6 Fiberglass Back Plenum accepts 6" to 18" Round Spin-in Collars or Start Collars (not included) - Accepts 1" disposable filter (not included) - Recommended Size: 20" x 20" x 1"

+ Product Details Size - 32"w X 36"h X 2"d (for duct opening measurement only)

+ Product Details Size – Stick-on collar is 24" and it is compatible with duct 24"

+ Product Description The HVAC Premium Round Metal Pipe Reducer & Increaser is crafted from high-quality galvanized sheet metal

30° Thinline Outdoor Louver Gable Vent (Flange Frame) - Customizable Extruded Aluminum Ceiling R6 Fiberglass Back Plenum acceptsOur 30 Thinline Aluminum Louver Vent Exterior Air Grille for Walls, Gables & Crawlspaces is Weather Resistant with a Flange Frame. Features Fixed 30 horizontal blades on 3 4" spacing Fully extruded aluminum blades and flange 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. Available in