30" x 34" or 34" x 30" Cube Core Eggcrate Return Air Grille 1-Way + Product Details Size –

+ Product Details Size – 16"w X 34"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 10"h is the size for the duct opening measurement only

margin-right: 12px

Mounted with a frame and bayonet joint

Ideal for Walls & Ceilings: Designed for seamless installation in standard 30" X 6" duct openings

30" x 34" or 34" x 30" Cube Core Eggcrate Return Air Grille 1-Way + Product Details Size –+ Product Details Size 30" x 34" or 34" x 30" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32. 5" X 36. 5". 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