20" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 5" Diameter Backflow Stopper - Yes

Backflow Stopper - Yes

+ Product Details Size – 22"w X 20"h is the size for the duct opening measurement only

Our galvanized duct elbow boot is made of high-quality galvanized sheet metal with crimped ends (snap-lock design) for easy fitting and secure connection

+ Product Details Size – 14"w X 2"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 16 5/8" width X 24 5/8" height

20" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES 5" Diameter Backflow Stopper - Yes+ Product Details Size 20"w X 14"h is the size for the duct opening measurement only, [Outer Dimensions: 22. 5"w X 16. 5"h] Actual Filter Size 19 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,