Furnace Filters

Furnace filters come in a variety of lengths, widths, and thickness. A correctly sized furnace filter is essential for optimum performance of your heating system. Most standard furnace filters are between 1 and 2 inches in thickness and media filters are between 3 and 5 inches in thickness. If your current furnace filter doesn’t have the measurements listed on the filter or the furnace owner’s manual doesn’t clarify what size is recommended, you can measure the current filter with a measuring tape to determine what size you need. 

Indoor air is more polluted than outside air due to pollutants becoming trapped inside and building up over time. Dust, pollen, dirt, pet dander, mold, and other impurities can pollute your indoor air. A furnace filter is responsible for trapping and eliminating different contaminants in your air to protect your home, family, and heating system. A quality filter will electrostatically charge particles, eliminating odors, bacteria, germs, viruses, and other impurities that cause respiratory irritation.

The right furnace filter will prevent particulates from entering your heating system, which leave carbon deposits and residue on the inside of the ventilation system and heating elements. The residue decreases your heating system’s efficiency and puts additional stress on the components. The more stress put on a unit, the more wear and tear occurs and reduces the lifespan of your heating system. An ill-fitting or dirty furnace filter will cause you to pay more for unexpected and expensive HVAC repairs.

Take action to protect your family, heating and cooling system, and home with a high-quality furnace filter from DiscountFurnaceFilter.com. DiscountFurnaceFilter.com has a wide selection of furnace filter replacements at the lowest prices online. We carry top manufacturer and aftermarket models in a variety of MERV ratings and sizes. We carry a variety of Lennox, Aprilaire, 3M, Honeywell, Bryant, Trion, Lysol, Trane furnace filters and many more. Search our online selection to find your perfect furnace filter!