14"W X 14"H [Duct Opening] 4-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 15.75"W X 15.75"H] Color_Red Oak Wood + Product Details Size –

+ Product Details Size – 20"w X 40"h is the size for the duct opening measurement only

this thermostat guard is the perfect solution for safeguarding your temperature controls

+ Product Details Size – 8"w X 18"h is the size for the duct opening measurement only

These are airflow control components made to connect to supply grilles of the drop ceiling

High Quality – high quality solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges

14"W X 14"H [Duct Opening] 4-Way Aluminum Curved Blade Adjustable Air Supply HVAC Diffuser [Outer Dimensions: 15.75"W X 15.75"H] Color_Red Oak Wood + Product Details Size –+ Product Details Size 14"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are 15. 75" width X 15. 75" height. Design Individually adjusting curved blades for better air flow control. Screws Included High Quality Aluminum The premium durable aluminum will never rust and it will never wear through leaving the material with an elegant, beautiful, and smooth surface, adds a luxurious touch to any home.