Clear Plastic Thermostat Guard - See Thru - Solid Base - 8.25" x 5.37" - Extra Large - With Lock & Key 8" Diameter the actual front end outer

the actual front end outer dimensions are 6" in diameter

+ Product Details Size - 28"w X 6"h is the size for the duct opening measurement only

Our grilles feature a durable powder-coat finish

actual front end outer dimensions are approximately 10 5/8" width X 10 5/8" height

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Clear Plastic Thermostat Guard - See Thru - Solid Base - 8.25" x 5.37" - Extra Large - With Lock & Key 8" Diameter the actual front end outer+ Product Details Universal Fit Accommodates almost any thermostat with dimensions of 8 1 4" H x 5 3 8" W x 3 1 2" D. Durable Construction Made from high quality, high impact clear plastic for long lasting performance. Locking Security System Features a built in eight tumbler lock and a supplied key to prevent tampering and maintain consistent temperature settings. Easy Installation Comes with all necessary installation screws for a quick and hassle