The EA290 20X20 is a 20 in. x 20 in. aluminum fixed bar return air filter grille used for sidewall or ceiling openings. Our product is constructed to ensure maximum airflow and compliment your home decor. Using our aluminum fixed bar return air filter grille to outfit your ventilation system will improve your home air circulation.. Color: White. Color Family: Whites. Features: Louvered. Installation Location: Ceiling,Wall. Material: Aluminum. Maximum Duct Opening Length (in.): 20 in. Maximum Duct Opening Width (in.): 20 in. Pack Size: 1. Product Weight (lb.): 6.5 lb. Returnable: 90-Day. Outside Length (in.): 22.75 in. Outside Width (in.): 22.75 in. Maximum Duct Opening Length (in.): 20 in. Maximum Duct Opening Width (in.): 20 in. Installation Location: Wall. Installation Location: Ceiling. Outside Width (in.): 22.75 in. Features: Louvered