14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Grille 18" Diameter + Product Details Size -

+ Product Details Size - 32"w X 14"h is the size for the duct opening measurement only

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

actual front end outer dimensions are approximately 30 5/8" width X 18 5/8" height

Ideal for Walls & Ceilings: Designed for seamless installation in standard 20" X 20" duct openings

14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Grille 18" Diameter + Product Details Size -+ 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