20" X 25" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w6h6 ensuring you stay cool and

ensuring you stay cool and comfortable during long days on the job

but you will appreciate the benefits over the period of time

Replaceable Keys: The included keys are replaceable for your peace of mind

+ Product Details Size – 20" x 36" or 36" x 20" is the size for the duct opening measurement only

Actual Filter Size – 31 3/4"w x 31 3/4" x 1"

20" X 25" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES w6h6 ensuring you stay cool and+ Product Details Size 20"w X 25"h is the size for the duct opening measurement only, [Outer Dimensions: 22. 5"w X 27. 5"h] Actual Filter Size 19 3 4"w x 24 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,