16" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 4in diameter + Product Details Size -

+ Product Details Size - 8"w X 6"h X 2"d (for duct opening measurement only)

+ Product Description Introducing the HVAC Premium Tube Cutter Set – a heavy-duty solution for precise cuts on plastic

Tamper-Proof Locking Mechanism – Includes an eight-tumbler lock with a supplied key to prevent unauthorized access

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

+ Product Details Size – 18" x 30" or 30" x 18" is the size for the duct opening measurement only

16" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 4in diameter + Product Details Size -+ Product Details Size 16"w X 12"h is the size for the duct opening measurement only, [Outer Dimensions: 18. 5"w X 14. 5"h] Actual Filter Size 15 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,