10" x 12" or 12" x 10" Cube Core Eggcrate Return Air Grille Compatible With Duct 8in Filter Grille features a user-friendly

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

+ Product Details Size - 25"w X 4"h is the size for the duct opening measurement only

+ Product Details Size - 16"w X 20"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 34 5/8" width X 30 5/8" height

+ Product Details Size - 14"w X 14"h X 2"d (for duct opening measurement only)

10" x 12" or 12" x 10" Cube Core Eggcrate Return Air Grille Compatible With Duct 8in Filter Grille features a user-friendly+ Product Details Size 10" x 12" or 12" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 75" X 13. 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