18x18x1 Merv 11 Furnace Air Filter

Code: 18181M11

Actual Size:17 1/2 x 17 1/2 x 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


In Stock


High-efficiency furnace filters help your heating and cooling system run more effectively and maximize its lifespan. Merv Filters LLC offers a variety of air filters with 8, 11, 13 MERV ratings. Our high-quality MERV filters are easy to install, last longer to save you money and eliminate more airborne irritants than traditional filters.

Most of the furnace filter’s life depends upon the condition you live and how much you use them. Keeping your HVAC system’s air filter up-to-date will save you money and allow your system to run smoothly and efficiently. Our 18x18x1 MERV 11 furnace filter captures and holds 91% of airborne particles, removing allergens such as dust mites, pollen, mold spores, pet dander, dust, and smog. Each air filter will be delivered to you in a pack of 4, 6, 12 filters.

Proudly made in the USA, Merv Filters LLC furnace filters ensure quality indoor air. Ideal for people who suffer from issues concerning dander, mold, or pollen. Normally, designed to last for 90 days, but we recommend to change every month or 60-90 days. Consider purchasing directly from manufacturers for special offers on bulk orders. Don’t hesitate to contact us for any product related query.

Important Note: Whenever you buy 18x18x1 MERV 11 air filter, make sure you get the right size filter. As the size written on the box of the filter is nominal size, which is slightly greater in terms of inches from the actual size filter. For example, if the ‘nominal’ size of the filter is 18x18x1, then the ‘actual’ size is 17.5×17.5×0.75

Additional information

Weight 0.50 oz


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