Filterbuy 16x25x4 Air Filter MERV 13, Pleated HVAC AC Furnace Filters Replacement | Wayfair
Filtrete ADP01-2PK-2 16x25x4 AC Furnace Air Filter, MPR 1000, Fits 51141349817 | eBay
16 x 25 x 4 3/8 Reusable Filter Frame System Kit. Replaces Honeywell 16x25x4 3/8" & 3M 16x25x5. Includes Lifetime Reusable Frame MODEL # RFFS 805 and 3 Replacement Filters PART # PP-805 MERV 11.