Clear Plastic Thermostat Guard - See Thru - Solid Base - 8.25" x 5.37" - Extra Large - With Lock & Key steel Actual Filter Size – 24

Actual Filter Size – 24 3/4"w x 19 3/4" x 1"

85" width X 25

How To Measure A Grille

+ Product Details Size - 24"w X 30"h is the size for the duct opening measurement only

Design – Fixed hinged for easy filter change & cleaning - uses a 1" thick filter

Clear Plastic Thermostat Guard - See Thru - Solid Base - 8.25" x 5.37" - Extra Large - With Lock & Key steel Actual Filter Size – 24+ 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