18x24x1 Merv 11 Furnace Air Filter

Code: 18241M11

Actual Size:17 1/2 x 19 1/2 x 3 3/4

  • 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




A furnace filter’s job is to eliminate the unwanted contaminants from the indoor air and maintain the efficiency of your heating and cooling system. Merv Filters LLC stocks a wide collection furnace filters with MERV 8, 11, 13 ratings. All our filters are manufactured in the USA. We offer multiple payment options to order online.

Our 18x24x1 MERV 11 furnace filters effectively remove airborne particles such as dust mites, pollen, mold spores, pet dander, dust and smogs. Constructed with electrostatically charged synthetic media that is bonded to corrosion resistant expanded metal support grids. This filter media with an effective open area of 96% allows your system stay clean and operate more efficiently, making it an ideal choice for allergy sufferers.

Our MERV 11 furnace filters are designed to last for 90 days. Most of the manufacturers recommend replacing your filter every 30-60 days for better indoor air quality, especially for people living near mine sites. Order online directly from manufacturers and get an offer on bulk orders. Feel free to contact our support team for any product related query.

Important Note: When it comes to buying 18x24x1 MERV 11 air filter, measure your filter dimensions to find the correct size filter. The size labeled on the filter packages is the ‘nominal’ size, which is a bit greater than the actual size. Example, if the ‘nominal’ size of the filter is 18x24x1, then the ‘actual’ size is 17.5×23.5×0.75

Additional information

Weight 0.50 oz


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