20" X 40" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES White + Product Details Size –

+ Product Details Size – Size - Cuts 45mm & below

Actual Filter Size – 19 3/4"w x 25 3/4" x 1"

Design – This duct fitting is designed for transitioning oval wall stack ducting to round sheet metal pipe

Easy Cutting – Offset and Spring Loaded design for easy

75"H – fits a 14" X 12" duct opening

20" X 40" ALUMINUM RETURN FILTER GRILLE FOR 1" FILTER - EASY AIR FLOW - LINEAR BAR GRILLES White + Product Details Size –+ Product Details Size 20"w X 40"h is the size for the duct opening measurement only, [Outer Dimensions: 22. 5"w X 42. 5"h] Actual Filter Size 19 3 4"w x 39 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,