12"W X 12"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 13.75"H] Aluminum Adjustable Curved Blade this thermostat guard combines dependable

this thermostat guard combines dependable security with a professional and attractive appearance

including the ability to mount without removing the thermostat when using the ring base

+ Product Details Size – 3"h X 10"h is the size for the duct opening measurement only

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+ Product Details Size - 6"w X 6"h X 2"d (for duct opening measurement only)

12"W X 12"H [Duct Opening] Steel Air Vent Return Grille - HVAC VENT DUCT COVER DIFFUSER - [Outer Dimensions: 13.75"W X 13.75"H] Aluminum Adjustable Curved Blade this thermostat guard combines dependable+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 13. 75" height. Design Easy unrestricted airflow for your HVAC system 50 angled to provide maximum airflow. High Quality Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just