20" X 6" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Insulated Flexible Ducts R-6.0 with actual outer dimensions of

with actual outer dimensions of 10

+ Product Details Size – 34" x 34" is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 6" OR 6" x 20" duct opening (measured at the opening)

actual front end outer dimensions are approximately 13" width X 13" height

+ Product Details Size – 6"h X 10"h is the size for the duct opening measurement only

20" X 6" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Insulated Flexible Ducts R-6.0 with actual outer dimensions of+ Product Details Size 20"w X 6"h is the size for the duct opening measurement only, [Outer Dimensions: 22. 5"w X 8. 5"h] Actual Filter Size 19 3 4"w x 5 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,