BestAir 20"x25"x5" MERV 11 Pleated Air Filter. This electrostatically charged air filter lasts up to 1 year and effectively traps pollen, mold, bacteria, dust/lint, and virus carriers. It fits Trion Air Bear Models Supreme 2000, 435790-027, 455602-019, 459200-005, Skuttle Model DB0-0025-020, GeneralAire Model MAC2000, Source1 Model S1-MAC10202505, Ultravation Model 90-007, and Braeburn Model 162025, 162026.