30" X 6" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Oval Stack Head + Product Details Size –

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

the culprit is a clogged filter

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Crafted from durable ABS plastic

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

30" X 6" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIRFLOW - LINEAR BAR GRILLES Oval Stack Head + Product Details Size –+ Product Details Size 30"w X 6"h is the size for the duct opening measurement only, [Outer Dimensions: 32. 5"w X 8. 5"h] Actual Filter Size 29 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,