20" x 20", White, Steel Lanced Return Air Filter Grille With 1/2" Fin Spacing, All Steel Construction, 1/2" Spaced Fins Set At 40 Degree, Effectively Conceals Filter, Used Standard 1" Thick Disposable Filters, Not Included, Removable Face For Easy Installation & Cleaning, Equipped With Adjustable Filter Retainers.
