28" x 36" or 36" x 28" Cube Core Eggcrate Return Air Grille 8" Diameter designed to distribute air evenly

designed to distribute air evenly throughout your space

40" x 16" Aluminum Spiral Duct Air Vent Grille Cover - Fully Adjustable Double Deflection HVAC Air Supply

+ Product Details Size - 32"w X 25"h is the size for the duct opening measurement only

Measure the size of the vent opening

Installation Location – Ceiling

28" x 36" or 36" x 28" Cube Core Eggcrate Return Air Grille 8" Diameter designed to distribute air evenly+ Product Details Size 28" x 36" or 36" x 28" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 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