Complete Line Of Genuine Lennox Filters, Honeywell Filters, Aprilaire Filters and 3M Filtrete Air Filters

DiscountFurnaceFilter.com is the premiere online store of supreme quality, genuine 3M Filtrete Air Filters, Lennox Filters, Honeywell Filters, Aprilaire Filters as well as name brand humidifiers, thermostats and other OEM products to improve the overall indoor environment of your home.

DiscountFurnaceFilter.com is your one-stop-shop for all your indoor air cleaning needs. We have an extensive range of sophisticated air filters including 3M Filtrete air filters, Lennox filters, Aprilaire filters and Honeywell filters from the leaders of the industry.

Lennox Filters
As a "brick and mortar" Lennox dealer for over 25 years, we offer top-quality Lennox air filters, Lennox furnace filter, Lennox thermostats, Lennox humidifiers and other OEM Lennox products that we have installed and tested in the field.

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. Our rich range of Lennox filters also include Lennox X0586, Lennox X6670, Lennox X0581 and other popular Lennox boxed media filters.

In addition, the Lennox X6672 and X6675 MERV 16 Lennox media filters have grown in 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 have come to the right place.

Honeywell filters
We carry all the four major types of air filters offered by the industry giant Honeywell including Replacement Media filter, Media Air Cleaners, Electronic air cleaners and HEPA air cleaners. Some of our popular Honeywell filters include Honeywell Replacement Pre filter, Honeywell Pleated Filter Media and Honeywell Media AC Filter. All Honeywell filters are certified by the American Lung Association.

Aprilaire Filters
DiscountFurnaceFilter.com offers the entire range of Aprilaire replacement filter media, Aprilaire replacement furnace filters and Aprilaire media air cleaner. We offer Aprilaire filter for all the popular models including Aprilaire models 2200, Aprilaire 2250 and Aprilaire 2400.

3M Filtrete Air Filters
At DiscountFurnaceFilter.com, we have the entire range of high performance, genuine 3M Filtrete filters! Our complete line of 3M Filtrete Air Filters includes disposable filters for forced air heating and cooling systems and 4" filters for media air cleaning systems. We stock all types of 3M Filtrete filters, including the popular Filtrete Micro Allergen and Filtrete Ultra Allergen filters. 3M Filtrete Air Filters capture hazardous microscopic allergens like dust, smoke, and large allergens like mold spores and pet dander to ensure a healthy indoor air for you and your family.

At, DiscountFurnaceFilter.com, we specialize in brand new, supreme quality 3M Filtrete Air Filters, Lennox Filters, Honeywell Filters and Aprilaire Filters and we offer all our air filters at unbeatable prices together with assuring our customers of the fastest and the most secured shipping.

So whether you are looking for 3M Filtrete air filters and Lennox filters, Aprilaire filters or Honeywell filters, you are sure to be able to find an air filter that suits your requirement best and that works for you best.