14" x 20" or 20" x 14" Cube Core Eggcrate Return Air Grille Fixed Blades with Damper toggle('open')

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Actual Front End Outer Dimensions Are 5

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

Slots are angled to diversify the airflow in 2 way direction

this HVAC vent duct cover ensures durability and reliability

14" x 20" or 20" x 14" Cube Core Eggcrate Return Air Grille Fixed Blades with Damper toggle('open')+ 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