6" x 12" or 12" x 6" Cube Core Eggcrate Return Air Grille w8h8 is fireproof and ensures efficient

is fireproof and ensures efficient thermal performance

We carry sizes the big box stores don't

production and finish on all products

Efficient Airflow Design: The slots are meticulously angled to diversify airflow in two directions

while the ingenious dial-controlled damper empowers you to effortlessly regulate airflow using your foot

6" x 12" or 12" x 6" Cube Core Eggcrate Return Air Grille w8h8 is fireproof and ensures efficient+ Product Details Size 6" x 12" or 12" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 8. 5" X 14. 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