16" x 16" Cube Core Eggcrate Return Air Grille RV Mobile Home + Product Details Size –

+ Product Details Size – 10"w X 6"h is the size for the duct opening measurement only

For example

+ Product Details Size - 12"w X 18"h is the size for the duct opening measurement only

+ Product Details Size - 30"w X 2"h is the size for the duct opening measurement only

16" x 16" Cube Core Eggcrate Return Air Grille RV Mobile Home + Product Details Size –+ Product Details Size 16" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 17. 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 electric