Lennox X6675 X6673 20x25x5 Air Furnace Filter Merv 16 | Merv 15 Alternative 2 Pk

X6673, FC100A1037 Replacement Filter | AirPurete AP-LX20255 | Actual Size 19-3/4 X 24-3/4 X 4 X 24 3 4 4 3 8 Nominal 20x25x5 Pack Of 1 Filter Replacement Lennox X6673 X6675 19l17 86a1456b Ea24 44cc B885 Aa4605669a61.e06596baeda3a8e1dc6e32ca411bf8df Replace this air filter every 6 months to achieve optimal results. Lennox X6673 Furnace Filter 20x25x5 Replacement MERV 10. Actual Size 1 Actual Size: 19-7/8 x 24-3/4 x 4-3/8 This newly upgraded Lennox X6673 MERV 11 furnace filter has been improved from a MERV 10. You get the same 20 X 25 X 5 filter media size with the added... This is an authentic Lennox HCF20-11 X6673 20x25x5 MERV 11 pleated air filter that traps airborne particles as small as 0., 3 micron. Lennox X6673 Healthy Climate Furnace Air Filter, 20x25x5 This MERV 11 X6673 filter offers a 98% efficient filtration media capturing particles as small as 0., 3 microns before they can collect on your coils.