14" X 25" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 27 5/8"] w12h12 And is classified as Class

And is classified as Class 1 Fire Proof - B1

Actual Filter Size – 11 3/4"w x 19 3/4" x 1"

+ Product Description When it's time to upgrade your HVAC Vents in your house

+ Product Description Enhance your HVAC system with our Aluminum Return Filter Linear Bar Grille

this piece is the perfect touch of class you need to add to your decor

14" X 25" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 16 5/8" X 27 5/8"] w12h12 And is classified as Class+ Product Details Size 14"w X 25"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 16 5 8" width X 27 5 8" height Actual Filter Size 13 3 4"w x 24 3 4" x 1" High Quality High quality solid stamped steel with counter sunk screw holes (screws included) and no sharp edges Installation Location Sidewall and ceiling Design Removable door face for easy filter change & cleaning uses a 1" thick filter.