22"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 21.75"h] 3-Way or 4-Way this guard ensures long-lasting protection 4 X 12 Is CRFG2028 Width_14in

this guard ensures long-lasting protection while offering a sleek

Measure the size of the vent opening

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 8" OR 8" x 28" duct opening (measured at the opening)

actual front end outer dimensions are approximately 24 5/8" width X 32 5/8" height

Installing the plaster frame is effortless – secure it into your sheetrock

22"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 23.75"w x 21.75"h] 3 Way or 4 Way this guard ensures long lasting protection 4 X 12 Is CRFG2028 Width_14in this guard ensures long lasting protection while offering a sleek Measure the size of the vent opening