16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Grille 14in diameter 24" x 6" Aluminum Spiral

24" x 6" Aluminum Spiral Duct Air Vent Grille Cover - Fully Adjustable Double Deflection HVAC Air Supply

75" Height

Think of the diameter as a straight line from one end to the other

This aluminum adjustable louvered garage vent allows air ventilation and circulation in your garage 24 hours a day

actual front end outer dimensions are approximately 14 5/8" width X 30 5/8" height

16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Grille 14in diameter 24" x 6" Aluminum Spiral+ Product Details Size 16" x 22" or 22" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 23. 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