This Lennox X6673 MERV 10 Furnace Filter Replacement is a 98% efficient filtration media that can capture particles as small as 0.3 microns before they can collect on coils.

The Lennox X6673 MERV 11 Furnace Filter Replacement Features:

• MERV 11 Filter
• Genuine Lennox Part #X6673
• Filter dimensions: 20" x 25 " x 5 "
• Actual Dimensions: 19 3/4 x 24 3/4 x 4 3/8
• Air Flow Volume: 1400 - 2000 CFM

 For use in:

Lennox  Healthy Climate Filter Cabnet   HCF20-28,  Filter # x6673, HCF20-10, HCC20-28

Honeywell Model # F25A1068, F25F1067, F35F1024, F100F1038, F150E1034, F200E1037,  Filter # FC35A1027, FC100A1037, FC200E1037

Trion Air Bear Model # Supreme 2000, 455602-001, 447380-002, Filter # 255649-02, 229990-002, 229990-102