12" X 8" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w25h25 + Product Details Size –

+ Product Details Size – 14" X 4" is the size for the duct opening (floor/vent hole) measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 8" duct openings

actual front end outer dimensions are 19

+ Product Details Size – 10"w X 2"h is the size for the duct opening measurement only

+ Product Details Size - 22"w X 10"h X 2"d (for duct opening measurement only)

12" X 8" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w25h25 + Product Details Size –+ Product Details Size 12"w X 8"h is the size for the duct opening measurement only, [Outer Dimensions: 14. 5"w X 10. 5"h] Actual Filter Size 11 3 4"w x 7 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,