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23.5x30.75x1 Air Filter Merv 8
23.5x30.75x1 AC Filter Merv 11
23.5x30.75x1 Furnace Filter Merv 13
23.5x30.75x1 Filter Merv 13 Titanium
23.5x30.75x1 Filter Merv 10 Carbon
23.5x30.75x1 Filter Merv 8 Carbon 23.5x30.75x1 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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23.5x30.75x1 Air Filter

AC Furnace Air Filter 23.5x30.75x1 -Inches

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Product Description

Item Model Number: FKFB23.5X30.75A
Brand: Filter King
Filter size: 23.5x30.75x1
Actual Size: 23.5 x 30.75 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, 23.5x30.75x1 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.

23.5x30.75x1 Air Filter Reviews

What MERV Rating should I choose?

How Often to Change Your 23.5x30.75x1 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.

23.5x30.75x1 Air Filter

Filter King 23.5x30.75x1 size air filters are used in your air systems as tools to keep incoming airflow clean of any harmful irritants. The filters raise indoor air quality as fresh, clean airflow cycles throughout your home. Your home air systems are not able to differentiate the good air form the bad, so filters clean up all passing airflow. The cleaned air is allowed in and any harmful irritants become absorbed or captured in a tight mesh weaving. This weaving eventually becomes covered in captured particles and grows less effective over time.

Dirty air filters require consistent replacement, or they will start causing problems for their systems and your home. Fresh air is unable to pass through dirty air filters into your home, which leads to dryness and stagnation in the air throughout. Your air systems will try to push airflow throughout the blockage by increasing their functions. The process places increased strain on your air systems and additional energy usage over time. This may lead to mechanical damage requiring costly repairs and a rise in energy billing for your home.

Filter King offers replacement 23.5x30.75x1 size air filters to keep the air coming into your home fresh and clean. Our premium delivery service has new air filters arrive regularly if you choose our subscription option. Orders of two or more filters are even shipped out for free. Our filters have a MERV rating of eight and block irritants like:

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

23.5x30.75x1 Furnace Air Filters

Furnace filters are tools used to keep heated airflow clean as it distributes throughout your air systems. These furnace filters will eventually become dirty and start causing issues for your home. When heated airflow is unable to pass through, then the temperatures start to build up over time. Eventually, the heat rises to a point where your system suffers from mechanical damage and your home face temperature fluctuations. Order new air filters for your systems today in order to keep the air inside fresh, clean, and warming the many rooms of your house.