16" X 30" or 30" x 16" Heavy Duty Floor Grille - Fixed Blades Air Grille - Brown [Outer Dimensions: 17.75 X 31.75] Mounting Bracket If you are looking for Suitable for all AC 8in diameter 12125SDCLNGBX

If you are looking for a top of the line unit to enhance your project

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 30" OR 30" x 18" duct opening (measured at the opening)

meaning rust and corrosion won’t be a problem

+ Product Details Size - 14"w X 18"h X 2"d (for duct opening measurement only)

16" X 30" or 30" x 16" Heavy Duty Floor Grille Fixed Blades Air Grille Brown [Outer Dimensions: 17.75 X 31.75] Mounting Bracket If you are looking for Suitable for all AC 8in diameter 12125SDCLNGBX If you are looking for a top of the line unit to enhance your project + Product Details Perfect Fit & Easy Sizing Designed for a 18" x 30" OR 30" x 18" duct opening (measured at the opening)