16" x 34" or 34" x 16" Cube Core Eggcrate Return Air Grille ceiling 875" width X 10" height

875" width X 10" height

+ Product Details Size – 28"w X 22"h is the size for the duct opening measurement only

6"w X 6"h Is The Size For The Duct Opening Measurement Only

this 4-way air vent diffuser allows you to precisely control airflow

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 34" OR 34" x 22" duct opening (measured at the opening)

16" x 34" or 34" x 16" Cube Core Eggcrate Return Air Grille ceiling 875" width X 10" height+ Product Details Size 16" x 34" or 34" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 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