Clear Plastic Designer Thermostat Cover- Solid and Ring Bases - 7-1/16" W x 4-1/8" H x2 1/8"D sidewall + Product Description Introducing the

+ Product Description Introducing the 6" Butterfly Damper – Your Solution for Controlled Airflow

Actual Filter Size – 29 3/4"w x 33 3/4" x 1"

+ Product Details Size - 20"w X 28"h is the size for the duct opening measurement only

expanding or retracting the gap to meet your precise needs

actual front end outer dimensions are approximately 22 5/8" width X 12 5/8" height

Clear Plastic Designer Thermostat Cover- Solid and Ring Bases - 7-1/16" W x 4-1/8" H x2 1/8"D sidewall + Product Description Introducing the+ 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