14" x 22" or 22" x 14" Cube Core Eggcrate Return Air Grille Compatible with Duct 8" + Product Details Size –

+ Product Details Size – 20"w X 16"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 10 5/8" width X 10 5/8" height

providing efficient performance of up to 300m3/h

Operating from -40°F to +248°F

actual front end outer dimensions are approximately 27

14" x 22" or 22" x 14" Cube Core Eggcrate Return Air Grille Compatible with Duct 8" + Product Details Size –+ Product Details Size 14" x 22" or 22" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 23. 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