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21 x 21 x 4 MERV 8 Pleated Air Filter (each)

Product #: P80S.042121
Actual Size: 20 7/8" x 20 7/8" x 3 3/4"
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$85.08 ($14.18each)
$85.08 6-Pack ($14.18 Each)
$153.12 12-Pack ($12.76 Each)
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  • Product Description Open

    Pleated MERV 8 Media

    Comparable to MPR 600 and FPR 5

    Designed for Superior Filtration Efficiency

    Made with electrostatically charged synthetic material that draws and captures allergens between 3 - 10 microns, including lint, dust mites, mold spores, pollen, pet dander, and dust.

    Improve Indoor Air Quality

    Protect your family and loved ones with clean indoor air quality at home. Aerostar filters are a simple and cost effective step towards a healthier home environment, free of airborne allergens and particles that can trigger various allergy and asthma symptoms.

    Improve Efficiency and Reduce Cost

    An Aerostar furnace air filter helps keep your HVAC unit working efficiently by removing dirt and reducing strain on the motor. When your unit runs properly, it consumes less energy, requires less maintenance and will have a longer life.  These factors will have an impact on your utility bill and maintenance costs. It is recommended that you change the filter every 60 to 90 days during normal times of year but increase frequency to 30 days during peak summer and winter months when your unit is working the hardest.

    About Aerostar Furnace Air Filters

    Aerostar filters are manufactured in the USA by Filtration Group, a world-leading manufacturer and supplier of filtration solutions for residential, commercial and industrial applications. The Aerostar brand is known for constantly innovating and improving their technology to help make filtration more efficient, effective and environmentally friendly every day.

    About MERV, MPR and FPR Rating

    The three rating systems were created by different organizations. MERV is the domestic and international Industry Standard rating system established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers. The other two rating systems were created by 3M and The Home Depot, but all are rating the same filter.

    MERV Rating (Minimum Efficiency Reporting Value): As you have already learned, the MERV Rating is the primary rating system used in the industry, both domestically and internationally. Established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers, MERV rates a filter’s ability to capture and hold particles and pollutants.

    MPR (Micro-Particle Performance Rating): MPR Rating is a rating system developed by 3M. It rates the manufacturer’s Filtrete product line and their ability to capture airborne particles smaller than 1 micron.

    FPR (Filter Performance Rating): FPR Rating is a rating system developed by The Home Depot for brands sold through their stores, including Honeywell. It utilizes a color code and number scale (4 to 10) that closely resembles the MERV rating.

    What's in the Box

    Box of six Aerostar MERV 8 Pleated Furnace Air Filters. MERV 8 filters are comparable to MPR 600 and FPR 5 ratings


    Made in the USA

    Change Frequency:

    60-90 Days



    Chemically Treated:



    U.L. 3TVA

  • Additional Information Open
    Lead Time Message:
    "SHIPS in 5 Business Days" from a location nearest you. This product is made to order in our warehouses nationwide. Delivery will depend on Shipping method and delivery location.
    Air Filter Type:
    Dust & Pollen
    MERV 8
    MPR 600
    FPR 5
    Captured Particle Size:
    3-10 Microns
    21 x 21 x 4
    Actual Size
    20 7/8" x 20 7/8" x 3 3/4"
    Standard Capacity
    Change Frequency:
    Every 60-90 Days
    Equipment Protection:
    Pleats Per Foot:
    Lint Dust:
    Dust Mites:
    Mold Spores:
    Pet Dander:
    Fine Dust:
    GTIN / UPC:
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