36" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w6h6 + Product Details Size – Product Description Enhance your CRFG68 Victorian Floor Registers

+ Product Details Size – 28"w X 34"h is the size for the duct opening measurement only

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

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 6" or 6" x 14" duct opening (measured at the opening)

this vent cover provides superior durability while maintaining a sleek

+ Product Details Size – 34"w X 34"h is the size for the duct opening measurement only

36" x 12" Cube Core Eggcrate Return Air Filter Grille for 1" Filter w6h6 + Product Details Size – Product Description Enhance your CRFG68 Victorian Floor Registers + Product Details Size – 28"w X 34"h is the size for the duct opening measurement only Efficient Airflow Design: The slots are meticulously angled to diversify airflow in two directions