18" x 32" or 32" x 18" Cube Core Eggcrate Return Air Grille 12" Round Duct Pipe + Product Details Size –

+ Product Details Size – 22"w X 32"h is the size for the duct opening measurement only

finished in sleek chrome

Great emphasis has been invested in the design of this product to prevent it from kinking in sharp bends & turns and to hold steady and at full diameter in all applications

Marked circles for cutout

Its locking eight-tumbler mechanism and supplied key safeguard your thermostat from tampering

18" x 32" or 32" x 18" Cube Core Eggcrate Return Air Grille 12" Round Duct Pipe + Product Details Size –+ Product Details Size 18" x 32" or 32" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" X 33. 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