Pleated MERV 12 Air Filters 2 Pack for Nordic Pure 20x25x4

Important Note: Almost all furnace filters have a different "actual size" than the nominal size printed on the air filter. It's best to measure your air filter for the exact size and compare it to the "Actual Size" provided. With the 4" and 5" air filters, there is a wider variance between the nominal and actual size depending on the manufacturer. For instance, if you are replacing a 4 3/8 depth 20x25x4 filter in your Honeywell unit, you should order the 20x25x5 Honeywell Replacement air filter that measures 19 7/8 x 24 7/8 x 4 3/8 (19.63x24.88x4.38).

Nordic Pure 20x25x4 Pleated Air Filters MERV 12 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home. All Nordic Pure pleated air filters are manufactured using a heavy-duty, moisture-resistant beverage board frame, and a metal mesh support grid is bonded to the pleats for extra support. MERV 12 furnace air filters are comparable to HVAC filters with the rating of MPR 1500-1900. This high-performance HVAC replacement filter will help keep your air conditioning and heating systems running efficiently, saving money on utilities and costly maintenance.

It is important to regularly change your furnace air filters, especially during any home improvements, to maintain fresh, clean air in your home or office. Nordic Pure recommends changing your air filter every 3-6 months to maintain maximum efficiency and economy.

The Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters have an actual size of 19-1/2-Inch by 24-1/2-Inch by 3-3/4-Inch. As mentioned earlier, it is crucial to measure your filter for the exact size and compare it to the "Actual Size" listed to ensure a proper fit. With the 4-Inch and 5-Inch filters, there are many different exact sizes for the various HVAC manufacturers, so your filter may say 20x25x4 but be the same as the 20x25x5 that Nordic Pure offers. Measuring your filter before ordering is highly recommended to avoid any surprises.

Changing your air filter is the first step in ensuring your HVAC system runs at its optimal level. Generally, you should change your 4-Inch air filters every 3 to 6 months. Particles in indoor air are measured in microns, which are 1/1000 of a millimeter. A human hair is about 100 microns wide, but the Nordic Pure MERV 12 air filter captures airborne particles as small as 0.3 microns.

Nordic Pure air filters do not kill germs, but the filter media does not permit the growth of bacteria or mold. As a result, it is not necessary to add any potentially irritating chemicals to the air filter to kill germs. Nordic Pure air filters are made of an electrostatically-charged synthetic material that draws airborne particulates to it like a magnet, helping to trap allergy-causing pollen, fine dust, smoke particles, airborne plant spores, bacteria, and some viruses.

The Nordic Pure 20x25x4 MERV 12 Pleated AC Furnace Air Filters have a nominal size of 20 x 25 x 4 and an actual size of 19 1/2 x 24 1/2 x 3 5/8 (19.5 x 24.5 x 3.63). These filters are made with MERV-rated synthetic poly blend pleated media and are manufactured in the USA.

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