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21.5x23x1 Air Filter Merv 8
21.5x23x1 AC Filter Merv 11
21.5x23x1 Furnace Filter Merv 13
21.5x23x1 Filter Merv 13 Titanium
21.5x23x1 Filter Merv 10 Carbon

21.5x23x1 Air Filter MERV 8

AC Furnace Air Filter 21.5x23x1 -Inches MERV 8

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Odor Eliminator

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Product Description

Item Model Number: FKFB21.5X23A
Brand: Filter King
Filter size: 21.5x23x1
Actual Size: 21.5 x 23 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

21.5x23x1a Air Filter Reviews

21.5x23x1 Air Filter

Filter King 21.5x23x1 size air filters have the crucial job of keeping incoming airflow clean as it enters your home. The air filters you purchase consist of a tight mesh weaving that allows airflow through but prevents irritants from dirtying up your systems. The cleaned-out air will then cycle into your home and provide it with a fresh, clean smell. The indoor air quality of your home raises and remains high as your filters continue to clean out incoming airflow over time. The process will continue until your air filter becomes too dirty to effectively allow airflow to pass through.

Your air systems grow dirtier over time as they continue to capture particles in their tight mesh weaving. Eventually, the air filters become so dirty that airflow will have an issue going through them and into your home. When your home lacks fresh airflow, then that means that the air inside will begin to grow dry and stale over time. Your air systems will also become strained as they are forced to push airflow through the blockage. The resulting problems include mechanical damage and increased energy billing over time.

Your air filters need frequent replacement if your home is to enjoy fresh air and clean breathing consistently. Filter King is able to deliver fresh new 21.5x23x1 directly to your home. Orders of two or more filters are shipped for free, and they come frequently if you choose our subscription option. Our filters have a MERV (Minimum Efficiency Reporting Value) rating of eight, and can block out particles like:

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

21.5x23x1 Furnace Filters

Your air filters are capable of fitting in several air systems situated around your home, including your furnace. The furnace needs air filters in order to keep the incoming heated airflow clean of any irritants. Over time, the filters become dirtier and end up blocking heated airflow from entering your home. If the air is not allowed through, then that may cause a buildup in heat that could seriously damage the system. Your home will experience temperature fluctuations since they are not being heated. Order new air filters today to keep your airflow coming in clean.