16" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 8" Round Duct Pipe actual front end outer dimensions

actual front end outer dimensions are approximately 27 5/8" width X 27 5/8" height

Actual Filter Size – 9 3/4"w x 13 3/4" x 1"

875" width X 16" height

+ Product Description The Deep Blank Box is crafted from high-quality galvanized steel and proudly Made in the USA

16" X 12" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 8" Round Duct Pipe actual front end outer dimensions+ 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,