Bar-Style Return Air Filter Grille, 24" x 24"

Bar-style face design,Flush, removable face with concealed latches and hinges, can be installed in any direction,Accepts 6" to14" unique tab collar (6400 Series) or 6" to 18" unique snap-in collar (5400 and 5400PP series); also accepts standards spin-in collar,Frame includes four seismic safety connections,Uses standard 1" disposable filters