20x25x4 Merv 13 Furnace Air Filter

Code: 20254M13

Actual Size:19 3/8 x 24 3/8 x 3 5/8

  • Extends life of HVAC Equipment
  • Protects HVAC Equipment
  • Top Quality
  • All Filters are made to order, please allow up to 7 days for processing.
  • Color of filter may vary from picture




Replacing your HVAC air filter is one of the major jobs that you can perform for your system maintenance. Unfortunately, not too many homeowners do so because they find it difficult or just forget about the air filter as it’s out of sight. Bear in mind that the dirty or clogged filters will result in a higher electricity bill or expensive repairs, which can cost you more than just getting a replacement filter.

Merv Filters LLC’s wide collection of MERV 13 filters can greatly reduce unwanted airborne dust, pollen, mold spores, pet dander, smog, dust mite debris, and tobacco smoke from the indoor air, resulting in a healthier living space. Our synthetic made 20 x 25 x 4 air filter MERV 13 can capture even 0.3-micron size particles, ideal to use in hospitals, schools, and universities.

Our 20x25x4 MERV 13 furnace filters are chemical-free, 100% water repellent, and designed for high strength and rigidity. We advise you to change MERV 13 filters at least after every 90 days, more frequently if you are living in an area near to construction sites. Take advantage of our high-quality products, vast selection, low prices, and custom-made air filters – order online now!

Important Note: Most of the filters are designed according to the nominal size. The exact size can vary slightly smaller than the nominal size, allowing the filter to properly fit in the slot. For example, nominal size of 20X25X4 may have exact dimensions of 19.5×24.5×3.75

Additional information

Weight 0.50 oz


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