10" x 3" Decorative Wood Supply Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction - [Outer Dimensions: 12w X 5"h] 10in diameter + Product Details Size – 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size – 6"w X 12"h is the size for the duct opening measurement only

making it ideal for preventing tampering or unauthorized adjustments

Ideal for Walls & Ceilings: Designed for seamless installation in standard 12" X 6" duct openings

+ Product Details Size - 16"w X 20"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 28 5/8" width X 14 5/8" height

10" x 3" Decorative Wood Supply Air Vent HVAC Duct Cover Grille Polished Finish Red Oak Wood 2 Way Air Direction [Outer Dimensions: 12w X 5"h] 10in diameter + Product Details Size – 4 X 12 Is CRFG2028 Width_14in + Product Details Size – 6"w X 12"h is the size for the duct opening measurement only making it ideal for preventing tampering or unauthorized adjustments