14" x 20" or 20" x 14" Cube Core Eggcrate Return Air Grille fixed bar 10"w X 4"h Is The

10"w X 4"h Is The Size For The Duct Opening Measurement Only

+ Product Details Size – 2"w X 12"h is the size for the duct opening measurement only

This simple adjustment reduces HVAC strain

85" width X 7

14" x 20" or 20" x 14" Cube Core Eggcrate Return Air Grille fixed bar 10"w X 4"h Is The+ Product Details Size 14" x 20" or 20" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 21. 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