28" x 30" or 30" x 28" Cube Core Eggcrate Return Air Grille d + Product Spec Sheet Outdoor

+ Product Spec Sheet Outdoor Louver Spec Sheet

actual front end outer dimensions are approximately 18 5/8" width X 30 5/8" height

actual front end outer dimensions are approximately 27 5/8" width X 32 5/8" height

Constructed from durable

28" x 30" or 30" x 28" Cube Core Eggcrate Return Air Grille d + Product Spec Sheet Outdoor+ Product Details Size 28" x 30 or 30" x 28" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 75" X 37. 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