Trion Air Bear 266649-101 - 16" x 25" x 3" MERV 13 Pleated Air Filter MERV 13 rating Nominal size: 16" x 25" x 3" Actual size: 15 3/4" x 24 1/4" x 3" Replacement filter media for Trion Air Bear filter cabinet models 455602-427, 455602-925, and 455602-425 Not a direct replacement for Honeywell or Lennox filters