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9x11.75x1 Air Filter Merv 8
9x11.75x1 AC Filter Merv 11
9x11.75x1 Furnace Filter Merv 13
9x11.75x1 Filter Merv 13 Titanium
9x11.75x1 Filter Merv 10 Carbon
9x11.75x1 Filter Merv 8 Carbon 9x11.75x1 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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9x11.75x1 Air Filter

AC Furnace Air Filter 9x11.75x1 -Inches

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Odor Eliminator

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Product Description

Item Model Number: FKFB09X11.75A
Brand: Filter King
Filter size: 9x11.75x1
Actual Size: 9 x 11.75 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, 9x11.75x1 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.

9x11.75x1 Air Filter Reviews

What MERV Rating should I choose?

How Often to Change Your 9x11.75x1 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.

9x11.75x1 Air Filter

Filter King 9x11.75x1 size air filters protect the air systems in your home from harmful irritants in the air outside. Our air filters are designed so that their tight mesh weaving is able to capture and absorb particles right out of passing airflow. Without air filters, your home may be subject to a full range of pollutants and allergens capable of entering your home through its air systems. Air filters will help your home by keeping indoor air quality high while irritants are kept out, but will become dirty over time. Dirty air filters need maintenance, or the resulting complications in an air system only become worse over time.

Dirty air filters only grow dirtier over time, and the problems they cause become worse as well until they affect the entire home. The airflow in a home cannot travel through dirty air filters,causing stagnation and dryness in the air throughout your home. Your air systems will also become strained when their air filters are dirty, which leads to increased billing and possible system damage. Filtrer King 9x11.75x1 air filters rank as an eight on the MERV (Minimum Efficiency Reporting Value) scale. Which means our filters are capable of blocking out irritants like:

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

9x11.75x1Air Filter Delivery

Dirty air filters need replacement before they start causing problems, they become dirtier at a faster rate in certain environments. FIlter King offers a quality delivery service, with a subscription option to have new air filters brought to your home regularly. Orders are best made in bulk, we offer discounts like free shipping for orders of two or more air filters. Order now and enjoy our quality air filters at affordable prices today.