We specialize in brand new, high-quality Lennox products! As a "brick and mortar" Lennox dealer for over 25 years, we sell top-quality Lennox air filters, Lennox humidifiers, Lennox thermostats, and other OEM Lennox products that we have installed and tested in the field. That means you can be confident that you won't make a mistake when you buy a Lennox filter or humidifier from DiscountFurnaceFilter.com. A few of our most popular items are the Lennox X0445 and Lennox X0444 pleated media filters that fit the Lennox PMAC and Space-Gard media filter cabinets. We also carry Lennox X0586, Lennox X0581, Lennox X6670 and other popular Lennox boxed media filters. In addition, the Lennox X6672 and X6675 MERV 16 Lennox media filters are gaining popularity because of their extremely high filtration capabilities. Whether you need a Lennox bypass humidifier or Lennox programmable thermostat to make your entire home more comfortable, or a Lennox furnace filter or PureAir filter, you came to the right place.