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20x20x1 – Merv 8

20x20x1 – Merv 8
AC Furnace Air Filter
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Product Description

Filter Size: 20x20x1

Actual Size: 19.75×19.75×1

Actual Size Fraction : 19-3/4×19-3/4×1

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Order 20x20x1 Air Filters Online

Custom Filters Direct 20x20x1 air filters keep the air in your home or office clean, removing toxic bacteria and even viruses that spread coughing and sneezing microbes. Our AC and furnace air filters are constructed with 100% synthetic media which captures almost all of the airborne particles and maintains indoor air quality.

All our air filters are designed with HVAC standards in mind. These air filters are highly capable of trapping particles like pollen, dust, mold, bacteria, viruses, and more. This will make it easier for you to breathe, which can help prevent respiratory issues like asthma and allergies.

Our air filters come with a tight mesh weaving to easily capture small size particles. Once air filters trap the particles, they start accumulating on the surface of the filters. The trapped particles clog the mesh and reduce the efficiency to pass the clean air. In this situation, the HVAC has to work harder, resulting in more energy bills and HVAC motor breakdown.

Custom Filters Direct recommends you to check your air filters regularly and change them after 2-3 months.

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


MERV 8 filters are an effective way to improve indoor air quality as they trap 85% of the airborne particles found in an average home. These filters are a pocket-friendly option when looking to improve indoor air quality.


MERV 11 filters are a great option for households with moderate allergies and dirty air around buildings. These air filters capture more than 85% of particles 3.0 – 10.0 microns in size and 50% of particles 1.0 – 3.0 microns in size.


MERV 13 furnace and AC filters are a great choice for commercial buildings and medical facilities as they provide high-level air filtration. These air filters will capture more than 90% of particles 3.0 – 10.0 microns in size and 75% of the particles 0.3 – 1.0 microns in size.

20x20x1 Air Filters Delivery Services

Custom Filters Direct offers premium 20x20x1 air filters that can eliminate almost all harmful particles while improving clean airflow in your living space. To maintain healthy indoor air quality with filters, you can either choose our monthly subscription service or one-time air filter delivery. Our subscription service allows you to get a pack of new air filters at a regular interval without having to take the stress of placing the order again and again. All our air filters are delivered in bundles of 4, 6, 12, 48, and more. Place your order now!