32"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 21.75"h] 18in diameter + Product Details Perfect Fit 4 X 12 Is CRFG2028 Width_14in

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 26" OR 26" x 32" duct opening (measured at the opening)

Contorl Lever To Adjust Louvers According To Season - Complete Open For Summer To Release The Heat

ready to enhance your space

actual front end outer dimensions are approximately 28 5/8" width X 26 5/8" height

Actual Filter Size – 15 3/4"w x 21 3/4" x 1"

32"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 33.75"w x 21.75"h] 18in diameter + Product Details Perfect Fit 4 X 12 Is CRFG2028 Width_14in + Product Details Perfect Fit & Easy Sizing Designed for a 32" x 26" OR 26" x 32" duct opening (measured at the opening) Contorl Lever To Adjust Louvers According To Season Complete Open For Summer To Release The Heat