6" x 36" or 36" x 6" Cube Core Eggcrate Return Air Grille Supply Grille Actual Filter Size – 11

Actual Filter Size – 11 3/4"w x 23 3/4" x 1"

Choose our premium HVAC grilles and registers for long-lasting durability

Our filter grille latch is easy to use on your fingers and requires no screwdriver to open

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This versatile solution enhances air supply and adds a touch of class to your space

6" x 36" or 36" x 6" Cube Core Eggcrate Return Air Grille Supply Grille Actual Filter Size – 11+ Product Details Size 6" x 36" or 36" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 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