All filters are made in the USA + Free Shipping on orders over $50

Call Us C877.570.9755

11.75x13.5x1 Air Filter Merv 8
11.75x13.5x1 AC Filter Merv 11
11.75x13.5x1 Furnace Filter Merv 13
11.75x13.5x1 Filter Merv 13 Titanium
11.75x13.5x1 Filter Merv 10 Carbon
11.75x13.5x1 Filter Merv 8 Carbon 11.75x13.5x1 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
{{ filter_count }} Pack of

11.75x13.5x1 Air Filter

AC Furnace Air Filter 11.75x13.5x1 -Inches

1. Select Filter Quality

Odor Eliminator

2. Select Quantity

${{ money(priceWithoutDiscount()) }} Save ${{ money(savePrice()) }} ({{ savePercent()}}%)


Product Description

Item Model Number: FKFB11.75X13.5A
Brand: Filter King
Filter size: 11.75x13.5x1
Actual Size: 11.75 x 13.5 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, 11.75x13.5x1 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.

11.75x13.5x1 Air Filter Reviews

What MERV Rating should I choose?

How Often to Change Your 11.75x13.5x1 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.

11.75x13.5x1 Air Filter

Filter King 11.75x13.5x1 size air filters are useful tools to keep fresh airflow coming in while airborne irritants stay out. The irritants are blocked by your air filters tight mesh weaving, the captured particles are stopped while the cleaned airflow comes through. The clean air that cycles into your home provides a fresh smell, while the old air is cycled out to prevent any issues. Over time, your air filters become covered in the captured particles and become a problem for indoor air quality.

Dirty air filters are a problem for a home due to their inability to let air flow pass through easily. Over time, the lack of airflow will cause the air in your home to dry out and stagnate, which makes it uncomfortable and unhealthy to breathe in. Your air filters need maintenance to avoid any strain on their air systems as well, which grows worse and causes a rise in billing. New air filters will provide protection and allow airflow to pass without incident. Our 11.75x13.5x1 size air filters rate as an eight on the MERV (Minimum Efficiency Reporting Value) scale, and are capable of blocking our particles like:

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

11.75x13.5x1 Air Filter Delivery

The dirty air filters in your home need replacement, and Filter King offer quality air filters at affordable prices. We are able to deliver your filters right to your door, with our subscription service you can see a new air filter arrive as often as monthly. Bulk orders also come with discounts, orders of two or more filters are shipped for free. Order today and enjoy fresh airflow for your home.