Description
Design – Removable face for cleaning and access to damper - wooden damper for airflow shutoff control
It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire
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The design eliminates noise and prevents louvers from vibrating
Design – Rigid gauge built for durability and long life in mind
6" x 30" or 30" x 6" Cube Core Eggcrate Return Air Grille Brown Design – Removable face for+ Product Details Size 6" x 30" or 30" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 31. 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