14" x 26" or 26" x 14" Cube Core Eggcrate Return Air Grille Compatible With Duct 10in 14" Circular Round Aluminum HVAC

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

+ Product Details Size – 20" x 30" or 30" x 20" is the size for the duct opening measurement only

+ Product Details Size – 14"w X 14"h is the size for the duct opening measurement only

+ Product Details Size – 8"w X 4"h is the size for the duct opening measurement only

10"w X 6"h Is The Size For The Duct Opening Measurement Only

14" x 26" or 26" x 14" Cube Core Eggcrate Return Air Grille Compatible With Duct 10in 14" Circular Round Aluminum HVAC+ Product Details Size 14" x 26" or 26" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 27. 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