6" x 28" or 28" x 6" Cube Core Eggcrate Return Air Grille Copper Coil + Product Details Size –

+ Product Details Size – 14" x 30" or 30" x 14" is the size for the duct opening measurement only

High diffusion induction rates result in rapid temperature and velocity equalization of the mixed air mass well above the zone of occupancy

+ Product Details Size – 18" Corner Baseboard Grille - White - HVAC corner vent cover

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6" x 28" or 28" x 6" Cube Core Eggcrate Return Air Grille Copper Coil + Product Details Size –+ Product Details Size 6" x 28" or 28" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 29. 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