16" x 20" or 20" x 16" Cube Core Eggcrate Return Air Grille Black unrestricted airflow with a precise

unrestricted airflow with a precise 50° angled design

75" width X 11

+ Product Details Size – 15" Corner Baseboard Grille - White - HVAC corner vent cover

With our extensive selection of Grilles

16" x 20" or 20" x 16" Cube Core Eggcrate Return Air Grille Black unrestricted airflow with a precise+ Product Details Size 16" x 20" or 20" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 21. 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