A filter grille is a specialized air vent that allows a filter to be placed directly at the return air opening rather than at the furnace. This is a popular choice for homes where the air handler is located in a hard-to-reach crawlspace or attic. By using a filter grille, homeowners can change their filters in seconds from the comfort of their living room. These are common in Mobile Home applications where the main unit is tucked away in a small closet. You can find a variety of decorative and functional grilles in our Accessories-Kits collection to match your home's decor. Using a high-quality filter in the grille protects your AC Coil Systems from getting clogged with dust and pet hair. It is essential to ensure the grille is properly sized to prevent whistling noises and high static pressure. A well-placed filter grille is the first step in maintaining a healthy and efficient Ducted Shop All system.