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18x27x1A – Merv 13

18x27x1A – Merv 13
AC Furnace Air Filter
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Product Description

Filter Size: 18x27x1A

Actual Size: 18x27x1

Actual Size Fraction : 18x27x1

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Buy 18x27x1A Air Filters Online

Air filters are one of the most important parts of any home’s ventilation system. They remove small particles from the air passing through your house, which can help to keep you healthy and comfortable. Without air filters, you could end up with lung problems and a range of other health issues.

Custom Filters Direct 18x27x1A air filters are one of the best choices available on the market as they provide a much-needed layer of protection against airborne pollutants and allergens while promoting superior indoor air quality. Our air filters are designed using modern technology to deliver higher-level performance, higher dust loading capacity, and long-lasting results.

Manufactured in the USA with a heavy-duty frame, these filters ensure that they eliminate the most annoying particles like pollen, dust mite allergens, plant spores, pet dander, carpet fibers, and more.

When used for a long time, the AC and furnace air filters become dirty. The dirty air filters don’t let the clean air pass through and your HVAC unit has to run harder. So, it’s essential to replace your dirty filters every 2-3 months. Changing your air filter will not only keep your HAVC system working properly but also help you save on energy bills.

We have MERV 8, MERV 11 & MERV 13 Air Filters


These air filters trap 85% of airborne particles/allergens from 3 to 10 microns, including particles that carry viruses and bacteria. They last from two to three months depending on the environment.


MERV 11 AC and furnace air filters will improve the indoor air quality by capturing more than 85% of contaminants 3.0-10.0 microns in size and 50% of the particles 1.0-3.0 in size.


These air filters block more than 90% of the harmful particles between the size of 3.0-10.0 microns and up to 75% of particles between the size of 0.3-1.0 microns. These air filters are the best fit for asthma and allergies.

Fast 18x27x1A Air Filters Delivery

There are a number of reasons why it’s important to regularly change your HVAC air filters, including:

  • increased efficiency
  • increased engine power
  • improved air quality
  • better engine performance

When you shop with Custom Filters Direct, you get 2 options to place your order for air filters. First is an auto-delivery service to get a pack of 18x27x1A air filters at a regular interval of your choice. All you need to do is to choose the number of filters you need, 4, 6, 12, 48, or more, and select the delivery routine, and we will take care of the rest. The second is a one-time delivery option. You place your order once and get the air filters to keep your home clean for the whole year.

We also offer special discounts on bulk orders of 18x27x1A air filters. So, order now!