12" x 14" or 14" x 12" Cube Core Eggcrate Return Air Grille 10" Diameter actual front end outer dimensions

actual front end outer dimensions are approximately 20 5/8" width X 16 5/8" height

+ Product Details Size – 24"w X 20"h is the size for the duct opening measurement only

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

this guard is designed to provide maximum protection against tampering while maintaining a clean and professional appearance

Actual Filter Size – 33 3/4"w x 25 3/4" x 1"

12" x 14" or 14" x 12" Cube Core Eggcrate Return Air Grille 10" Diameter actual front end outer dimensions+ Product Details Size 12" x 14" or 14" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" X 15. 75". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing