36" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Grilles Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 9 3/4" x 1"

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 20" OR 20" x 28" duct opening (measured at the opening)

+ Product Details Size – 16" x 18" or 18" x 16" is the size for the duct opening measurement only

PRACTICAL DESIGN - The **pipe is designed to work effectively

36" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Grilles Actual Filter Size – 29+ 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,