14" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Insulated Line Set + Product Details Size –

+ Product Details Size – 14"w X 30"h is the size for the duct opening measurement only

providing efficient performance of up to 300m3/h

actual front end outer dimensions are approximately 16 5/8" width X 12 5/8" height

our Circular Air Supply Valves are ideal for low and medium pressure ventilation air conditioning systems

+ Product Details Size - 20"w X 16"h is the size for the duct opening measurement only

14" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Insulated Line Set + Product Details Size –+ Product Details Size 14"w X 14"h is the size for the duct opening measurement only, [Outer Dimensions: 16. 5"w X 16. 5"h] Actual Filter Size 13 3 4"w x 13 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,