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20.75x20.75x1 Air Filter Merv 8
20.75x20.75x1 AC Filter Merv 11
20.75x20.75x1 Furnace Filter Merv 13
20.75x20.75x1 Filter Merv 13 Titanium
20.75x20.75x1 Filter Merv 10 Carbon
20.75x20.75x1 Filter Merv 8 Carbon 20.75x20.75x1 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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20.75x20.75x1 Air Filter

AC Furnace Air Filter 20.75x20.75x1 -Inches

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Product Description

Item Model Number: FKFB20.75X20.75A
Brand: Filter King
Filter size: 20.75x20.75
Actual Size: 20.75 x 20.75 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, 20.75x20.75x1 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.

20.75x20.75x1 Air Filter Reviews

What MERV Rating should I choose?

How Often to Change Your 20.75x20.75x1 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.

20.75x20.75 Air Filter

Filter King 20.75x20.75 size air filters are necessary tools used by your air systems to clean up incoming airflow. Your air systems have no real way of differentiating good airflow from the bad. This means that any number of allergens or pollutants might travel inside via airflow. Air filters act as the tools used to clean out airflow and help ensure that the air coming inside is both fresh and clean. Your filters help raise indoor air quality, but in the process become dirty as they continue to trap and absorb passing air particles.

Dirty air filters have the tendency to cause problems for their systems, eventually they cause problems for your whole home. Fresh airflow needs to come in regularly or the air inside your home will suffer from issues with dryness and stagnation. Your air systems will also have problems as the air filters become a blockage as they become dirtier. Air systems become strained as they use more energy in an attempt to push airflow past the blockage. The strain leads to mechanical issues where it may become necessary to have some costly repairs along with the billing for increased energy use.

Your home air filters need regular replacement in order to keep airflow coming in without any problems. We offer fresh, new 20.75x20.75 to keep the airflow coming through accommodating air systems free of irritants. We also have a delivery service available, where orders of two or more air filters are shipped for free. With our subscription services new filters may arrive at your home as often as monthly. Filter King model filters have a MERV (Minimum Efficiency Reporting Value) rating of eight, meaning they block particles like:

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

20.75x20.75 Furnace Filters

Your furnace filters go into the air systems to keep heated airflow from bringing any pollutants into your home. The filters will become dirtier over time, and their position in the system makes this a serious problem. Heated airflow is normally cleaned, but when blocked the issue leads to a dangerous rise in temperatures. Your system may become damaged due to the heat, while temperature fluctuations occur throughout your home. Purchase new air filters today to help avoid these problems and keep airflow coming into your home naturally.