Hart & Cooley 18" x 18" (Wall Opening Size) White Sidewall/Ceiling Return Air Filter Grille (673 Series)

Note: Size shown is approximate. Check Submittal Drawing in manuals tab for exact dimensions. Features: All-steel construction 1/2" spaced fins set at 40 degrees Effectively conceals filter Use standard 1" thick disposable filters (not included) Removable face for easy installation and cleaning Equipped with adjustable filter retainers Bright White finish