nisreen 20x25x4 furnace filter replacement for lennox x6673 & honeywell fc100a1037 | [pet care] merv 13 pleated hvac air filters (upgraded version), actual size: 19.94 x 24.88 x 4.38 inches, 2-pack yellow-2 packs is up for auction in Tools & Home Improvement. This item is in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.