14" X 16" or 16" x 14" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 15.75 X 17.75] Color_Gray It has an outer surface

It has an outer surface made of high-quality aluminum foil and an inner surface made of metalized PET with inside high-tensile spring steel wire

Installation – Easy installation - just screw the sides of the access panel frame into your duct/hole – see photos for example

+ Product Details Size - 26"w X 12"h is the size for the duct opening measurement only

this thermostat guard is compatible with most standard thermostat models

actual front end outer dimensions are approximately 27 5/8" width X 14 5/8" height

14" X 16" or 16" x 14" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 15.75 X 17.75] Color_Gray It has an outer surface+ Product Details Size 14"w X 16"h or 16" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" width X 17. 75" height. High Quality High grade steel construction meant for high foot traffic areas. Installation Location Floor. Design Easy drop in installation. Powder Coat Finish Smooth, shiny, scratch resistant, with no sharp edges. Looks like it was just waxed. Quality Packaging Carefully