14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Grille 18" Diameter actual front end outer dimensions

actual front end outer dimensions are approximately 16 5/8" width X 30 5/8" height

Operating temperature from -40°f to +248°f [-40°c to +120°c]

+ Product Details Size – 22"w X 6"h is the size for the duct opening measurement only

this thermostat guard combines dependable security with a professional and attractive appearance

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 8" duct openings

14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Grille 18" Diameter actual front end outer dimensions+ Product Details Size 14" x 34" or 34" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 35. 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