ReservePro # 4541 Air Filter - 16x25x5 - (3-Pack ) Actual Size - 15-5/8" x 24-3/16" x 4-15/16" This factory original ReservePro filter can be used in air cleaner cabinets from several manufacturers, includig GeneralAire, Source-1, Trion, Skuttle, and Ultravation. The filter is constructed with highly efficient pleated synthetic media in a sturdy beverage board frame. CROSS REFERENCE: Replaces GeneralAire filters # 14161, 5FM1625, GFI#4511 Fits GeneralAire MAC1400 Air Cleaner Replaces Trion Air Bear # 255649-105 Fits Trion Air Bear Supreme 1400 Air Cleaner Replaces Source-1 # FM10162505 Fits Source-1 # S1-MAC10162505 Air Cleaner Replaces Skuttle # DB-25-16, #448-1, 000-0448-001 Fits Skuttle # DB0-0025-016 Air Cleaner Replaces Ultravation #91-005 Fits Ultravation 90-006 Air Cleaner FEATURES: MERV 11 Efficiency Rating Moisture resistant frame remains sturdy even in high humidity Rust resistant galvanized wire downstream gives the filter rigidity and hold