32" x 36" or 36" x 32" Cube Core Eggcrate Return Air Grille steel that will overlap at wall

that will overlap at wall joint

Ideal for Walls & Ceilings: Designed for seamless installation in standard 12" X 12" duct openings

+ Product Details Size – 14" x 20" or 20" x 14" is the size for the duct opening measurement only

font-size: 18px

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

32" x 36" or 36" x 32" Cube Core Eggcrate Return Air Grille steel that will overlap at wall+ Product Details Size 32" x 36" or 36" x 32" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 33. 75" X 37. 75". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing