14" X 10" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Floor Grille + Product Details Size –

+ Product Details Size – 34"w X 20"h is the size for the duct opening measurement only

+ Product Details Size - 25"w X 28"h is the size for the duct opening measurement only

+ Product Details Size & Compatibility – The size of galvanized sheet metal straight floor boot is 6" X 6" X 6"

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 12" duct openings

14" X 10" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Floor Grille + Product Details Size –+ Product Details Size 14"w X 10"h is the size for the duct opening measurement only, [Outer Dimensions: 16. 5"w X 12. 5"h] Actual Filter Size 13 3 4"w x 9 3 4" x 1" High Quality High quality rust free, strong aluminum construction with smooth finished edges for easy and safe use; Filter grille features a user friendly plastic latch that requires no screwdriver for opening. Installation Location Sidewall and ceiling. Design Heavier gauge than needed,