12" X 30" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w6h6 Cubic core eggcrate design has

Cubic core eggcrate design has the highest rate of airflow efficiency

+ Product Details Size - 24"w X 24"h X 2"d (for duct opening measurement only)

+ Product Details Size - 36"w X 36"h X 2"d (for duct opening measurement only)

+ Product Details Size – 22"w X 32"h is the size for the duct opening measurement only

Actual Filter Size – 35 3/4"w x 9 3/4" x 1"

12" X 30" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES w6h6 Cubic core eggcrate design has+ Product Details Size 12"w X 30"h is the size for the duct opening measurement only, [Outer Dimensions: 14. 5"w X 32. 5"h] Actual Filter Size 11 3 4"w x 29 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,