Straight Register Boot - 14" X 4" X 7" Round fixed bar + Product Details Size - 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size - 36"w X 20"h X 2"d (for duct opening measurement only)

+ Product Details Size & Compatibility – The size of the wall angle register boot is 12" X 3

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 12" duct openings

+ Product Details Size - 20"w X 14"h X 2"d (for duct opening measurement only)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 14" or 14" x 8" duct opening (measured at the opening)

Straight Register Boot 14" X 4" X 7" Round fixed bar + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 36"w X 20"h X 2"d (for duct opening measurement only) + Product Details Size & Compatibility – The size of the wall angle register boot is 12" X 3