ONE for ALL Carbon Prefilter fits most Air Cleaners (Trim to fit) 16″x48″. Bionaire air filter models SH1240, SH1260, SH1840, (A1000-C) SH0840 (AO802-C) BT400, BT500, BT500S, BT501, BT600,BT700, BT7 – BestAir Furnace Filters, Humidifier Filters & Wicks and Compactor Trash Bags