Replacement MERV 12 Air Filter 2 Pack for Lennox X6673_X6675

Please note that the "actual size" of most furnace filters may differ from the nominal size printed on the air filter. We recommend measuring your air filter to obtain the exact size and comparing it to our "Actual Size." The actual size of 4" and 5" air filters may vary depending on the manufacturer. For example, the Nordic Pure Honeywell Replacement MERV 12 rated air filters are a traditional 5" filter with an actual size of 4 3/8”. It is essential to measure your current filter or housing to ensure that the actual size matches the filter you are ordering.

Our pleated air filters are constructed with a heavy-duty, moisture-resistant beverage board frame and feature a metal mesh grid bonded to the pleats for extra support. The AC filter media is designed to prevent the growth of bacteria or mold, promoting a healthier living environment. With a MERV 12 rating, our furnace air filters are comparable to HVAC filters with a rating of MPR 1500-1900, making them a high-performance replacement filter that helps keep your air conditioning and heating systems running efficiently, ultimately saving money on utilities and maintenance costs.

The effective lifespan of your AC air filter depends on the conditions both inside and outside of your home or office. To ensure fresh, clean air, especially during home improvements, it is important to regularly change your furnace air filters. We recommend replacing your air filter every 3-6 months to maintain maximum efficiency and economy.

The nominal size of our air filter is 20 x 25 x 5 L x RED, with an actual size of 19 3/4 x 24 3/4 x 4 3/8 (19.75 x 24.75 x 4.38). We advise measuring your air filter for the exact size and comparing it to our actual size to guarantee a proper fit. This air filter is designed to replace the Lennox X6673 and X6675 media air filters, making it ideal for high-efficiency air filtration and suitable for individuals with moderate allergies. Additionally, the Nordic Pure MERV 12 is equivalent to MPR 1500-1900, and our product is proudly made in the USA.

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