The Trion Air Bear OEM filter catalog covers a broad range of residential cabinet configurations. The 255649-101 (16x25x3, MERV 8) and 259112-101 (16x25x3, MERV 11) are among commonly replaced filters for the standard 3-inch Air Bear cabinet format. For 5-inch deep-media cabinets, the 255649-102 (20x25x5, MERV 8), 259112-102 (20x25x5, MERV 11), 255649-103 (20x20x5, MERV 8), and 255649-105 (16x25x5, MERV 8) are the primary OEM replacements. Others in the Supreme series including the 455602-025, 455602-525, 455602-225, 455602-625, 455602-119C, 455602-125, 455602-425, 455602-725, and 455602-119 provide complete media air cleaner assemblies for cabinet lines such as the Supreme 2000 and Supreme 1400. These are typically MERV 8 and MERV 11 variants. Check inventory. The Trion 222838-102 post charcoal/carbon filter is also available for odor control applications. Most Trion Air Bear filters should be replaced every 6 to 12 months.