20" X 14" Or 14" X 20" Heavy Duty Floor Grille - Fixed Blades Air Grille- Brown [Outer Dimensions: 21.75 X 15.75] Round Duct Pipe Chemical Composition: 6% Silver - 4 X 12 Is CRFG2028 Width_14in

Chemical Composition: 6% Silver - 5% Phosphorus - 80% Copper - Brazing Temperature: Solidus Temperature: 1190°F - Liquidus Temperature: 1460°F

+ Product Details Size - 17"w X 10"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 34" or 34" x 10" duct opening (measured at the opening)

+ Product Details Size – 14"w X 14"h is the size for the duct opening measurement only

+ Product Description These line set covers will protect your line sets from virtually any damage

20" X 14" Or 14" X 20" Heavy Duty Floor Grille Fixed Blades Air Grille Brown [Outer Dimensions: 21.75 X 15.75] Round Duct Pipe Chemical Composition: 6% Silver 4 X 12 Is CRFG2028 Width_14in Chemical Composition: 6% Silver 5% Phosphorus 80% Copper Brazing Temperature: Solidus Temperature: 1190°F Liquidus Temperature: 1460°F + Product Details Size 17"w X 10"h is the size for the duct opening measurement only