36" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Grilles damper-link:hover { color: #003366

damper-link:hover { color: #003366

Don’t worry

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 36" OR 36" x 22" duct opening (measured at the opening)

actual front end outer dimensions are approximately 14 5/8" width X 8 5/8" height

+ Product Details Size – Adjustable sizes - 1/4" - 1-1/4"

36" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Grilles damper-link:hover { color: #003366+ Product Details Size 36"w X 12"h is the size for the duct opening measurement only, [Outer Dimensions: 38. 5"w X 14. 5"h] Actual Filter Size 35 3 4"w x 11 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,