Atomic 259112-105 Trion Air Bear Supreme 1400 Compatible Replacement Media Filter 16x25x5 MERV 11 - 2 pack 2 Filter pack Atomic Furnace Filter replacement for 259112-105 Trion Air Bear Supreme MERV 11 effectively removes mold, spores, pollen, and other airborne contaminants. Nominal Size: 16" x 25" x 5" Actual Size: 15 3/4" X 24-1/4" X 4 7/8" Whole house air filter is Compatible with Skuttle 448-1 DB-25-16, Generalaire 5FM1625 MAC1400, and Ultravation 91-005, 90-006 and 90-031