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20x36x1 Air Filter Merv 8
20x36x1 AC Filter Merv 11
20x36x1 Furnace Filter Merv 13
20x36x1 Filter Merv 13 Titanium
20x36x1 Filter Merv 10 Carbon
20x36x1 Filter Merv 8 Carbon 20x36x1 Filter Merv 8 Carbon
Protects All Against
  • Pollen protection
  • Dust protection
  • Mold protection
  • Dust Mites protection
    Dust Mites
  • Bacteria protection
  • Pet Dander protection
    Pet Dander
  • Smoke protection
  • Viruses protection
  • Cooking Smoke protection
  • Odor protection
  • Smog protection
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20x36x1 Air Filter

AC Furnace Air Filter 20x36x1 -Inches

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Odor Eliminator

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Product Description

Item Model Number: FKFB20X36
Brand: Filter King
Filter size: 20x36x1
Actual Size: 19.5 x 35.5 x .75
1-Inch Filter
MERV 8 Filter Rating
Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses
Residential / Commercial Use

Manufactured in the US

Why Buy Air Filters From Filter King?


In comparison to fiberglass filters, 20x36x1 pleated air filters are at least 20 times more effective. All Filter King air filters are made in the US.


Filters frames are made out of heat resistant paperboard with horizontal grid supports. Able to withstand temperatures of up to 200° F and resistant to moisture, the paperboard frames do not support microbial growth and outperforms traditional cardboard frames.


Chemical free, electrostatically charged synthetic polyester media is pleated, maximizing the surface area, to capture a high number of airborne particles as small as 0.3 microns with low air flow resistance. To increase durability, the media is supported with a corrosion resistant steel wire.

20x36x1 Air Filter Reviews

What MERV Rating should I choose?

How Often to Change Your 20x36x1 Air Filter?

Filter King AC & furnace filters aren’t the typical fiberglass filters that need to be replaced every 30 days. Our filters can typically be used for 3 to 5 months before requiring to be changed. Naturally, a variety of things influence filter lifespan.

Some of the factors that influence your filter’s life include outdoor air quality, whether pets are in the home, and how well your HVAC system is maintained.

Your air filter becomes clogged over time by trapped particles, preventing airflow. The efficiency of the HVAC filter declines. Your system must work harder to heat and cool your home. The extra strain on the HVAC system causes higher energy bills. Regular home air filter replacements can prevent expensive system repairs or replacements down the road.

You should change your filter more frequently if you notice:

  • Household dust build-up
  • The air isn’t cooling as is used to
  • There’s more dust near the air vents
  • A dirty filter surface
  • Higher energy bills
  • Burning smells near your HVAC system.

20x36x1 Air Filter

Filter King 20x36x1 air filters are used by your home HVAC systems to keep cleaner air flow coming in smooth and clean. Your air filters consist of a tight mesh weaving that captures and absorbs passing particles and letting cleaner air flow passes through. The cleaned air cycles throughout your home and helps raise indoor air quality over time. The air surrounding your home may contain all kinds of allergens and irritants that could float inside via airflow. Your air filters will keep the air coming in safe to breathe but become dirtier in the process.

Over time, the air filters in your home will capture and trap unwanted air particles that become a blockage in their heating and cooling system. Dirty air filters are unable to allow air flow to pass through easily, which means that fresh air will not cycle throughout your home. Without fresh air, the air already inside your home will dry out and become stagnant over time. Your heating and cooling system tries to push air flow past the blockage. The effort ends up causing strain that may lead to mechanical damage and a rise in energy billing.

The air filters in your home require consistent replacement in order to avoid several problems with their air conditioner systems. We provide 20x36x1 size air filters ready for purchase and capable of installation as soon as they arrive at your home. We also offer a delivery service, with orders of two or more filters shipped out for free. With our subscription option, you can have new air filters shipped out regularly, as often as monthly if you want. Our filters rate as an eight on the MERV (Minimum Efficiency Reporting Value) scale. This means that they are capable of filtering out particles like:

  • Pollen
  • Household Dust
  • Mold Spores
  • Dust Mites
  • Bacteria
  • Pet Dander
  • Smoke
  • Viruses

20x36x1 Furnace Filters

The furnace air filters in your home are necessary tools to keep the heated air passing through clean. The filter continues to clean out airflow over time, but like any other filter, they become dirty over time. Dirty furnace filters lead to the same problems of blockage with a lack of fresh airflow for the home. However, the airflow blocked is heated up before filtration and distribution. This means that the heated air builds up, which leads to possible mechanical damage and temperature fluctuations. Order new air filters now and have them delivered to your home on regular basis with an air filter delivery service or subscribe to our home air filter change reminder program.