12" X 10" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Aluminum Design – With its dual-directional

Design – With its dual-directional design

+ Product Details Size & Compatibility – The 4" stick-on Side take-off is compatible with duct 4"

+ Product Details Size & Compatibility – The size of galvanized sheet metal oval stack head with collar is 10" X 6" - 6" and it is compatible with Duct 6"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 36" OR 36" X 14" duct opening (measured at the opening)

12" X 10" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Aluminum Design – With its dual-directional+ Product Details Size 12"w X 10"h is the size for the duct opening measurement only, [Outer Dimensions: 14. 5"w X 12. 5"h] Actual Filter Size 11 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,