14" x 24" or 24" x 14" Cube Core Eggcrate Return Air Grille 18in diameter + Product Description Enhance your

+ Product Description Enhance your HVAC system with our Aluminum Return Filter Linear Bar Grille

order a 20x14 grille

+ Product Details Size – 16"w X 28"h is the size for the duct opening measurement only

+ Product Details Size - 18"w X 8"h is the size for the duct opening measurement only

actual front end outer dimensions are 11

14" x 24" or 24" x 14" Cube Core Eggcrate Return Air Grille 18in diameter + Product Description Enhance your+ Product Details Size 14" x 24" or 24" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 25. 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