30" X 10" Steel Return Air Filter Grille for 1" Filter - Removable Frame - * Filter Included *[Outer Dimensions: 32 5/8" X 12 5/8"] Supply Grille + Product Details Size – CRFG2028 Width_14in 4 X 12 Is

+ Product Details Size – 18"w X 26"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 24 5/8" width X 24 5/8" height

+ Product Description The Clear Plastic Thermostat Guard is designed to provide secure protection for your thermostat while maintaining an attractive

these airflow control components provide you with effortless control over your indoor environment

but you’ll appreciate the benefits over a long period of time

30" X 10" Steel Return Air Filter Grille for 1" Filter Removable Frame * Filter Included *[Outer Dimensions: 32 5 8" X 12 5 8"] Supply Grille + Product Details Size – CRFG2028 Width_14in 4 X 12 Is + Product Details Size – 18"w X 26"h is the size for the duct opening measurement only actual front end outer dimensions are approximately 24 5 8" width X 24 5 8" height