16" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Foam Tape 9% Pure Copper meeting ASTM

9% Pure Copper meeting ASTM B280 standards

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 6" OR 6" X 18" duct opening (measured at the opening)

+ Product Details Size - 30"w X 18"h X 2"d (for duct opening measurement only)

Design – Unrestricted airflow For Your HVAC system - noise free components - no vibrating louvers etc

16" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Foam Tape 9% Pure Copper meeting ASTM+ Product Details Size 16"w X 20"h is the size for the duct opening measurement only, [Outer Dimensions: 18. 5"w X 22. 5"h] Actual Filter Size 15 3 4"w x 19 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,