6" x 20" or 20" x 6" Cube Core Eggcrate Return Air Grille Color_Aluminum 75" Width X 25

75" Width X 25

Built-In Locking System – Comes with a permanently attached eight-tumbler lock and a supplied key for added security

and beautiful

+ Product Details Size - 28"w X 8"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 22 5/8" height

6" x 20" or 20" x 6" Cube Core Eggcrate Return Air Grille Color_Aluminum 75" Width X 25+ Product Details Size 6" x 20" or 20" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 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