Commonly called filter back grills. They are used in the return air and can house a 1" filter. They are hinged and
are bright white in color. It is important when selecting your grill that you remember all sizes are listed with the width first and then the height. Example 24x18 or 18x24
673 Return Air Filter Grille
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
Contact factory for sizes not listed
