18" x 24" or 24" x 18" Cube Core Eggcrate Return Air Grille Compatible with Duct 10" actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in

actual front end outer dimensions are approximately 30 5/8" width X 34 5/8" height

High Standard Quality - Every part is hand inspected for quality before it is packaged

+ Product Details Size - 30"w X 25"h is the size for the duct opening measurement only

these heavy-duty louvers are ideal for use in attics

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 34" or 34" x 10" duct opening (measured at the opening)

18" x 24" or 24" x 18" Cube Core Eggcrate Return Air Grille Compatible with Duct 10" actual front end outer dimensions 4 X 12 Is CRFG2028 Width_14in actual front end outer dimensions are approximately 30 5 8" width X 34 5 8" height High Standard Quality Every part is hand inspected for quality before it is packaged