22" x 32" or 32" x 22" Cube Core Eggcrate Return Air Grille sidewall Filter grille features a user-friendly

Filter grille features a user-friendly plastic latch that requires no screwdriver for opening

Locking Security System – Features a built-in eight-tumbler lock and a supplied key to prevent tampering and maintain consistent temperature settings

+ Product Details Size – 18" x 20" or 20" x 18" is the size for the duct opening measurement only

+ Product Details Size - 8"w X 24"h is the size for the duct opening measurement only

22" x 32" or 32" x 22" Cube Core Eggcrate Return Air Grille sidewall Filter grille features a user-friendly+ Product Details Size 22" x 32" or 32" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 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