30" x 32" or 32" x 30" Cube Core Eggcrate Return Air Grille Compatible with Duct 8" this register is built to

this register is built to perform and look great for years to come

+ Product Details Size – 28"w X 18"h is the size for the duct opening measurement only

+ Product Details Size – 34"w X 8"h is the size for the duct opening measurement only

Marked circles for cutout

30" x 32" or 32" x 30" Cube Core Eggcrate Return Air Grille Compatible with Duct 8" this register is built to+ Product Details Size 30" x 32" or 32" x 30" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 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