26" x 36" or 36" x 26" Cube Core Eggcrate Return Air Grille 12in diameter 16" Circular Round Aluminum HVAC

16" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover

actual front end outer dimensions are approximately 22 5/8" width X 36 5/8" height

actual front end outer dimensions are approximately 11

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

function toggleAccordion(event) { event

26" x 36" or 36" x 26" Cube Core Eggcrate Return Air Grille 12in diameter 16" Circular Round Aluminum HVAC+ Product Details Size 26" x 36" or 36" x 26" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27. 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