43542 - Hart & Cooley 43542 - 20" x 24" (Wall Opening Size) White Sidewall/Ceiling Return Air Filter Grille (673 Series)
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Aluminum Fixed Bar Return Air Filter Grille with Plenum Box - 24 x 24 T-Bar Lay-in Drop Ceiling - Amazon.com
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20" X 14 Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 22.5 X 15.75] - Amazon.com
![EZ-FLO 16-in x 16-in Steel White Sidewall/Ceiling Return Air Filter Grille in the Grilles department at Lowes.com EZ-FLO 16-in x 16-in Steel White Sidewall/Ceiling Return Air Filter Grille in the Grilles department at Lowes.com](https://mobileimages.lowes.com/productimages/e9610513-8cba-477e-a953-25c63aa129f7/13536388.jpg?size=pdhism)
EZ-FLO 16-in x 16-in Steel White Sidewall/Ceiling Return Air Filter Grille in the Grilles department at Lowes.com
![Venti Air 12 in. x 12 in. Square Return Air Filter Grille of Steel in White HFG1212 - The Home Depot Venti Air 12 in. x 12 in. Square Return Air Filter Grille of Steel in White HFG1212 - The Home Depot](https://images.thdstatic.com/productImages/2118fd4f-6705-4925-92c2-0c297e5fea9a/svn/whites-venti-air-registers-grilles-hfg1212-44_600.jpg)
Venti Air 12 in. x 12 in. Square Return Air Filter Grille of Steel in White HFG1212 - The Home Depot
![43526 - Hart & Cooley 43526 - 24" x 24" (Wall Opening Size) White Sidewall/Ceiling Return Air Filter Grille (673 Series) 43526 - Hart & Cooley 43526 - 24" x 24" (Wall Opening Size) White Sidewall/Ceiling Return Air Filter Grille (673 Series)](https://www.supplyhouse.com/images/products/zoom/43526-2.jpg)