16" x 30" or 30" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Ceiling but still very thin 4 X 12 Is CRFG2028 Width_14in

but still very thin

+ Product Description Introducing our 24" Wooden Corner Baseboard Grille - a sophisticated addition to elevate your HVAC system and interior decor

reducing energy costs and maximizing HVAC system lifespan

+ Product Details Size – 25"w X 32"h is the size for the duct opening measurement only

+ Product Details Size – 20"w X 22"h is the size for the duct opening measurement only

16" x 30" or 30" x 16" Cube Core Eggcrate Return Air Filter Grille for 1" Filter Ceiling but still very thin 4 X 12 Is CRFG2028 Width_14in but still very thin + Product Description Introducing our 24" Wooden Corner Baseboard Grille a sophisticated addition to elevate your HVAC system and interior decor