16" x 30" or 30" x 16" Cube Core Eggcrate Return Air Grille w20h20 + Product Details Size -

+ Product Details Size - 26"w X 28"h is the size for the duct opening measurement only

12"w X 3"h Is The Size For The Duct Opening Measurement Only

Design – Premium plated finish and modern contempo design forming a luxurious & impressive piece for your home

+ Product Details Size - 24"w X 34"h is the size for the duct opening measurement only

Actual Front End Outer Dimensions Are 42" Width X 18" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

16" x 30" or 30" x 16" Cube Core Eggcrate Return Air Grille w20h20 + Product Details Size -+ Product Details Size 16" x 30" or 30" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 31. 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