Filters-NOW DPFR16X25X5M13 16x25x5 Trion Air Bear Aftermarket Furnace Filter MERV 13 Pack of - 2 Fits: Trion Air Bear 229990-105 and 255649-105 & Trion Air Bear Supreme (1400) 455602-119. Nominal size 16 x 25 x 5. Actual size (H) 15 5/8 x (W) 24 1/8 x (D) 4 7/8. Package contains 2 Filters. This is an aftermarket filter.