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

24x24x5 Air Filter Merv 8 24x24x5 Air Filter Merv 8
24x24x5 AC Filter Merv 11 24x24x5 AC Filter Merv 11
24x24x5 Furnace Filter Merv 13 24x24x5 Furnace Filter Merv 13
24x24x5 Filter Merv 13 Titanium 24x24x5 Filter Merv 13 Titanium
24x24x5 Filter Merv 10 Carbon 24x24x5 Filter Merv 10 Carbon
24x24x5 Filter Merv 8 Carbon 24x24x5 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

Honeywell 24x24x5 Air Filters

Replacement Filter for Model Honeywell FC40R1078

Actual Size: 23.75 X 23.75 X 4.38

1. Select Filter Quality


2. Select Quantity

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


Product Description

Item Model Number: FKDPFG24X24X5AM8
24x24x5 (23.75 x 23.75 x 4.38) MERV 8 FC40R1078 Filter King Grille Filter for Honeywell

Manufactured in the US

Why Buy Air Filters From Filter King?


In comparison to fiberglass filters, 24x24x5 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.

24x24x5 Air Filter Reviews

What MERV Rating should I choose?

How Often to Change Your 24x24x5 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.

Honeywell FC40R1078 24x24x5 Replacement Grille Filters

The Honeywell FC40R1078 24x24x5 replacement filter replaces the original factory filter. The Honeywell FC40R1078 Factory Original Replacement Air Filter fits specific air purifier models - Old Honeywell #FC40R1078 Replacement Filter New #FC4NN1388AC Nominal size: 24x24x 5 Actual Size: 23 3/4x23 3/4x 4 3/8 - Proper installation of this Honeywell

The high grade filtration media is responsible for capturing airborne particles such as dust, pollen and mold spores from your home. The Honeywell FC40R1078 24x24x5 Replacement Grille Filters are also electrostatically charged to help capture even the smallest particles.

Filter King recommends that you replace your replacement filters every 6 months for maximum performance. This is considered to be the best practice in homes with moderate household dust, pet dander and outdoor pollen.