14" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w18h18 + Product Details Size -

+ Product Details Size - 32"w X 8"h is the size for the duct opening measurement only

+ Product Details Size – 8"w X 8"h is the size for the duct opening measurement only

The 1/2" white insulation

+ Product Details Size - 6"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 20 5/8" height

14" X 14" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w18h18 + 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,