Filterbuy 20x25x5 Air Filter MERV 13 Optimal Defense (1-Pack), Pleated HVAC AC Furnace Air Filters for Trion Air Bear, Generalaire, Skuttle, and Ultravation (Actual Size: 19.63 x 24.13 x 4.88 Inches) - Amazon.com
4551-GENERAL-AIRE - General Aire 4551-GENERAL-AIRE - 6FM2025 20" x 25" MERV 11 Replacement Filter
20x25x5 GeneralAire 5FM2025 Air Filter – Filter Hut
20x25x5 AIRx HEALTH GeneralAire 14201 Replacement Air Filter - MERV 13
Generalaire 8FM2025 - 20" x 25" x 5" MERV 13 Cartridge Filter for MAC 2000, 3000, MAC-
GeneralAire # 4551 for 4501 ReservePro 20x25x5 furnace filter, Actual Size:19 5/8" x 24 3/16" x 4 15/16" - Case of 2 Filters - Amazon.com
GeneralAire® 4367 20X20X5 | City Plumbing & Electric Supply