12"W X 12"H [Duct Opening] Never Rust Plastic 4-Way-Vertical Air Supply Register - HVAC Vent Duct Grille - Off White [Outer Dimensions: 13.75"W X 13.75"H] Color_Red Oak Wood + Product Details Size - 4 X 12 Is CRFG2028 Width_14in

+ Product Details Size - 10"w X 6"h is the size for the duct opening measurement only

+ Product Description Enhance your HVAC system's efficiency and your home's aesthetics with our premium aluminum air vent diffuser

adds a luxurious touch to any home

All year round solution - Get the hot air out during the Summer Months

actual front end outer dimensions are approximately 42 5/8" width X 12 5/8" height -

12"W X 12"H [Duct Opening] Never Rust Plastic 4 Way Vertical Air Supply Register HVAC Vent Duct Grille Off White [Outer Dimensions: 13.75"W X 13.75"H] Color_Red Oak Wood + Product Details Size 4 X 12 Is CRFG2028 Width_14in + Product Details Size 10"w X 6"h is the size for the duct opening measurement only + Product Description Enhance your HVAC system's efficiency and your home's aesthetics with our premium aluminum air vent diffuser