12" X 8" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 8in diameter ID tubing with 16 mm

ID tubing with 16 mm or 18 mm connections

+ Product Details Size – Duct end cap is 20" X 8" | 26-gauge galvanized steel end cap

Actual Filter Size – 31 3/4"w x 27 3/4" x 1"

+ Product Details Size – 8" x 14" or 14" x 8" is the size for the duct opening measurement only

12" X 8" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 8in diameter ID tubing with 16 mm+ Product Details Size 12"w X 8"h is the size for the duct opening measurement only, [Outer Dimensions: 14. 5"w X 10. 5"h] Actual Filter Size 11 3 4"w x 7 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,