16" X 16" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w36h36 + Product Details Size –

+ Product Details Size – 12" X 4" is the size for the duct opening (floor/vent hole) measurement only

Carefully packaged for protection during shipment

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+ Product Details Size - 28"w X 34"h is the size for the duct opening measurement only

+ Product Description Introducing HVAC Premium's Aluminum Adjustable Return Grill – the key to enhanced air control and energy efficiency

16" X 16" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w36h36 + Product Details Size –+ Product Details Size 16"w X 16"h is the size for the duct opening measurement only, [Outer Dimensions: 18. 5"w X 18. 5"h] Actual Filter Size 15 3 4"w x 15 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,