14" x 14" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover rg1010 this thermostat guard is compatible

this thermostat guard is compatible with most standard thermostat models

Mounted with a frame and bayonet joint

designed for superior airflow (up to 95%) and easy filter access

+ Product Details Size - 18"w X 32"h is the size for the duct opening measurement only

14" x 14" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover rg1010 this thermostat guard is compatible+ Product Details Size 14" X 14" is the size for the duct opening measurement only, actual front end outer dimensions are 3". Design Equipped with lever for full airflow control; back blades made of black plastic for reduced air noise and discreet appearance; "Opposing" back blades, ensuring they don't overlap, provide precise damper control and superior air dispersion. High Quality Aluminum The premium durable aluminum will never rust and it will