12" x 20" or 20" x 12" Cube Core Eggcrate Return Air Grille Brown 1/4” - 6518 PSI

1/4” - 6518 PSI

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

Actual Front End Outer Dimensions Are 14" Diameter

75"H – fits a 24" X 6" duct opening

12" x 20" or 20" x 12" Cube Core Eggcrate Return Air Grille Brown 1/4” - 6518 PSI+ Product Details Size 12" x 20" or 20" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 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