8"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Brown [Outer Dimensions 9.75"w x 9.75"h] 14in diameter 5"w X 12"h] 4 X 12 Is CRFG2028 Width_14in

5"w X 12"h]

Round-neck-to-square-face construction results in 360 degree air diffusion pattern similar to a full round diffuser

+ Product Details Size – 8" x 16" or 16" x 8" is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 16" Width X 5" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Details Size - 10"w X 14"h X 2"d (for duct opening measurement only)

8"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh Brown [Outer Dimensions 9.75"w x 9.75"h] 14in diameter 5"w X 12"h] 4 X 12 Is CRFG2028 Width_14in 5"w X 12"h] Round neck to square face construction results in 360 degree air diffusion pattern similar to a full round diffuser