12" x 36" or 36" x 12" Cube Core Eggcrate Return Air Grille Compatible with Duct 6" + Product Details Size -

+ Product Details Size - 25"w X 14"h is the size for the duct opening measurement only

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

our coils offer from 2300 to 6500 PSI

+ Product Details Size – 34"w X 32"h is the size for the duct opening measurement only

The premium durable material guarantees that they will never rust or wear through

12" x 36" or 36" x 12" Cube Core Eggcrate Return Air Grille Compatible with Duct 6" + Product Details Size -+ Product Details Size 12" x 36" or 36" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 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