Clear Plastic Classic Thermostat Cover- Solid and Ring Bases- 5-1/4"-4-3/8" Compatible With Duct 8in + Product Details Size -

+ Product Details Size - 4"w X 12"h is the size for the duct opening measurement only

Designed for both wall and ceiling applications

actual front end outer dimensions are approximately 11

actual front end outer dimensions are approximately 16 5/8" width X 22 5/8" height

Clear Plastic Classic Thermostat Cover- Solid and Ring Bases- 5-1/4"-4-3/8" Compatible With Duct 8in + Product Details Size -+ Product Details Durable Construction Made with clear, high impact plastic to provide reliable and long lasting protection for your thermostat. Two Mounting Base Options Includes both a solid base and a ring base. The ring base allows installation without removing the thermostat, offering maximum flexibility. Locking Security System Features a built in eight tumbler lock and a supplied key to prevent tampering and maintain consistent temperature