More About Return Air Filter Grilles, 1/2 Inch Spacing (673 Series)
The 673 Series Stamped Steel Return Air Filter Grilles for sidewall or ceiling application by Hart & Cooley are made with all-steel construction and effectively conceal the filter. They include 1/2” spaced fins set at 40 degrees, a removable face for easy installation and cleaning, use standard 1” thick disposable filters (not included), are equipped with adjustable filter retainers, and have a bright white finish.