28" x 32" or 32" x 28" Cube Core Eggcrate Return Air Grille 2-Way Deflection 75" width X 31

75" width X 31

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

Crafted for durability and rust-resistance

Measuring 3" in diameter for the duct opening

+ Product Details Size - 10"w X 36"h is the size for the duct opening measurement only

28" x 32" or 32" x 28" Cube Core Eggcrate Return Air Grille 2-Way Deflection 75" width X 31+ Product Details Size 28" x 32" or 32" x 28" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 75" X 33. 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