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18.25x22x1 Air Filter Merv 8
18.25x22x1 AC Filter Merv 11
18.25x22x1 Furnace Filter Merv 13
18.25x22x1 Filter Merv 13 Titanium
18.25x22x1 Filter Merv 10 Carbon
18.25x22x1 Filter Merv 8 Carbon 18.25x22x1 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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18.25x22x1 Air Filter

AC Furnace Air Filter 18.25x22x1 -Inches

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Product Description

Item Model Number: FKFB18.25X22A
Brand: Filter King
Filter size: 18.25x22x1
Actual Size: 18.25 x 22 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, 18.25x22x1 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.

18.25x22x1 Air Filter Reviews

What MERV Rating should I choose?

How Often to Change Your 18.25x22x1 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.

18.25x22x1 Air Filter

Filter King 18.25x22x1 size air filters are key components to their systems, cleaning out airflow and keeping the air in your home fresh. If the incoming airflow is not filtered then any number of allergens or irritants may pollute your home. Your home’s indoor air quality depends on filtration, with air filters cleaning passing airflow by trapping irritants in a tight mesh weaving. The air filters in your home will continue to clean out airflow until they become too dirty to effectively do so. Dirty air filters are a problem for your home and need replacement sooner rather than later.

Your home’s air quality is heavily affected by its filters, and their ability to both clean air and allow it into your home. Air filters only remain effective for a finite amount of time, they eventually become so dirty that airflow is unable to travel through them. Lack of airflow leads to more immediate problems for your home like dryness and stagnation for the air. Your air systems are also affected as they become strained over time while trying to push airflow through the blockages.

New air filters will help you prevent many issues that come with having dirty air filters installed in your home. We offer fresh, new 18.25x22x1 size air filters to help keep incoming airflow clean and coming in smoothly. We also offer a delivery service, complete with subscription option to have new air filters delivered regularly. The filters themselves have a MERV (Minimum Efficiency Reporting Value) rating of eight, and block out irritants like:

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

18.25x22x1 Furnace Filters

Your furnace filters clean the heated airflow traveling through the system before it is able to enter your ducts. The airflow going through the system may carry irritants, and the filters prevents them from polluting your systems as the cost of becoming dirty itself. You will need clean air filters installed before the old ones become dirty enough to start causing expensive temperature problems throughout your home. Order your filters today for installation to keep airflow coming into your home without issue.