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20 X 25 X 4

20x25x4 Four Seasons Activated Carbon Annual Pleated AC / Furnace Filter (Merv 8)

$ $83.11
As Low As: $66.49 each

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As Low As: $83.11

Ship within 5 - 7 days

Air Filters, Inc. is a US based manufacturer of residential and industrial air filters. If you are interested in a larger pack size or have a question about this product, please click here to request a quote.

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Dour Seasons MERV 8 Activated Carbon

Expanded Metal Backing

Easily Converts standard air return ductwork from 1-Inch standard filters to this new and innovative 4" design.

All without any modification to your home or furnace system.


Are you simply masking annoying odors?

Simply remove your existing filter and replace it with the Air Filters, Inc.™ Four Seasons™ MERV 8 Annual (Up to 12 Months) Expanded Metal Backing pleated Air Filter no tools or modifications is necessary. Activated carbon 4-inch air filters provides light to moderate odor control of smoke, pet odors and cooking odors that are absorbed and trapped with in the millions of microscopic carbon pores. With a combination of granular activated carbon (Removing gases and odor's) thermally bonded to the polyester non-woven fibers (Rated for Arrestance of 85% and Dust Efficiency 35%) that offers maximum carbon surface area, consistent carbon distribution with minimal pressure loss. Primarily used for general indoor air filtration in heating, cooling and ventilation equipment/systems but also can be applied as an excellent pre-filter for use in commercial and industrial high efficiency systems. Four Seasons™ MERV 8 activated carbon pleated filters are an ideal upgrade from standard disposable panel filters. These filters are designed to last up to 12 months.


Air Filters, Inc.™ Four Seasons™ MERV 8 Annual 4-Inch pleated air filters use the optimum blend of synthetic fibers to insure high dust holding capacity and filtering efficiency.

* MERV 8 Activated Carbon annual pleated air filters media is thermally glued to expanded metal backing to prevent the media from sagging during the filter's use.

* MERV 8 Activated Carbon annual pleated air filters pleats are formed in a radial configuration to insure proper dust loading.

* MERV 8 Activated Carbon annual pleated air filters cartridge is encapsulated in a heavy duty die cut beverage board frame to insure filter integrity in high moisture applications.

* MERV 8 Activated Carbon annual pleated air filters cartridge is glued to the peripheral interior of the outer

* MERV 8 Activated Carbon annual pleated air filters face of the die cut is internally glued to the apexes of the pleats to insure maximum endurance under adverse conditions.

* MERV 8 Activated Carbon annual pleated air filters media is electrostatically charged.

* MERV 8 Activated Carbon annual pleated air filters contain 9 pleats per linear foot which creates a greater surface area to catch airborne particles.

Activated carbon air filters are designed to last up to 3 months however the activated carbon with in the air filter can have a limited life span based on the amount of odors required to absorb and so replacement may need to occur in quicker intervals.

Download MERV Rating Chart

Additional Information

U.S. Efficiency MERV 8 - 60% CTC
Euro Efficiency EN779-F5
Shipping Ship within 5 - 7 days
Market Residential
Applications Apartment , Carcinogenic , Commercial Building , House , HVAC , Industrial Workplace , Odor Control, Furnace | AC Filter
Characteristics Arrestance 90% , Disposable , Dust Efficiency 35% , Up-Stream Gasket, Upgrade , 12 Month Filter
Filtered Contaminants mite , odor , pollen , smog , smoke, dust
Construction / Style Cardboard Frame, Standard Pleat
Media Activated Carbon , Cotton-Polyester, Expanded Metal , Activated Carbon
Filter Frame paper
Pleats Per Foot 9
Actual Size 18 3/8 x 23 3/8 x 3 3/4
Nominal Size 20 x 25 x 4
Manufacturer Air Filters Incorporated
UPC 715907004807
MFG Part FSM8CX20254
Weight 10.1500

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Air Filters, Inc. is committed to providing a "one-stop shop" for all of your air filtration requirements. As an air filter manufacturer, we are uniquely positioned to custom make any and all types of air filters.

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