16" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 20 Feet Long Design – Individually adjusting curved

Design – Individually adjusting curved blades for better air flow control

actual front end outer dimensions are 41

Insulation is made of 1/2" Polypropylene and is UV Resistant

+ Product Details Size - 28"w X 10"h is the size for the duct opening measurement only

16" X 20" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 20 Feet Long Design – Individually adjusting curved+ 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,