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Filters Fast® Replacement for GeneralAire F1021, 4572 MERV 13 16x25x4 Air Filter

4572

$92.95
Only $30.98 per Filter
Retail: $119.99 /ea
You Save: 23%
As low as
$92.95
Retail: $119.99
You Save: 23%
4 MERV 13 Air Filter Sizes :
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Frequently Bought With This Item

    The Filters Fast® Replacement for GeneralAire F1021, 4572 is a MERV13 air filter media cartridge measures 16" x 25" x 4" approximately, and is the correct filter replacement for GeneralAire TERSus 2000 Systems. These Filters Fast® MERV 13 filters remove airborne allergens and particles as small as 0.3 micron to improve indoor air quality significantly to make it comfortable year round. The Filters Fast® MERV 13 electrostatic high-efficiency particle filtration removes allergy causing mold spores, pollen and lung-damaging dust.

    Specifications:

    • Brand: Filters Fast®
    • Part Number: FFM136, Ffm1362
    • Replaces Part Number: F1021, 4572
    • Pack Size: 3
    • Filter Life: 6 - 12 months
    • MERV Rating: 13

    Compatible Parts:

    The Filters Fast® Replacement for GeneralAire F1021, 4572 MERV 13 16x25x4 Air Filter is the correct replacement for the following part numbers:

    Part Number
    4581
    4582
    70-0069-6104-2
    7010251653
    7010273781
    7010277439
    FFM136-12244
    FFM136-16204
    FFM136-16254
    FFM136-18244
    FFM136-20204
    FFM136-20244
    FFM136-20254
    FFM136-24244
    FFM136-25294
    NDP01-4IN-2P-2
    NDP03-4IN-2P-2-OLD
    PF13.0412243PFF
    PF13.0416203PFF
    PF13.0416253PFF
    PF13.0418243PFF
    PF13.0420203PFF
    PF13.0420243PFF
    PF13.0420253PFF
    PF13.0424243PFF
    PF13.0425293PFF
    GENERALAIRE 4581
    GENERALAIRE F1021
    No results for {X}

    Compatible Models:

    The Filters Fast® Replacement for GeneralAire F1021, 4572 MERV 13 16x25x4 Air Filter is correct replacement for the following model numbers:

    BrandModel NumberDescription
    GeneralAire TERSUS 1200 Air Cleaner
    No results for {X}

    Customer Reviews:

    Total Reviews: 136 Average Rating: 4.8 / 5.0

    Filtersfast Reviews on Trust Pilot external site
    Do not create an acnt2026-06-06

    Very pleased with the quality

    Collected by Trustpilot.com
    Seth Wilburn2026-06-01

    allows us to change the filter every other month.

    Collected by Trustpilot.com
    Edward Fazendin2026-05-30

    The dimensions of the filters were not as described.

    Collected by Trustpilot.com
    Charles2026-05-29

    i have used these filters for many years. They perform as they should and were recommended by my HVAC tech

    Collected by Trustpilot.com
    Joseph Adamo2026-05-28

    Good but a little small

    Collected by Trustpilot.com
    Barbara2026-05-10

    High quality

    Collected by Trustpilot.com
    Douglas Maule2026-05-09

    Product is not true the size, seems like you’re trying to cost by making them smaller. They flop around inside the housing.

    Collected by Trustpilot.com
    Jim Kriksciun2026-05-04

    Great service!

    Collected by Trustpilot.com
    Brian Wiedmer2026-04-26

    the easy order and the cost is the reason I keep ordering from your company.

    Collected by Trustpilot.com
    Dolores Swearingencustomer2026-04-14

    Just the right size for our furnace after trying unsuccessfully buying other brands

    Collected by Trustpilot.com
    Marty Thomas2026-03-14

    I have used the same filters for years I change them every 3 months. Good value for the price.

    Collected by Trustpilot.com
    David Barnett2026-03-05

    Great company that stands by their products.

    Collected by Trustpilot.com
    Thomas Slebodnik2026-02-15

    Very good product for the price.

    Collected by Trustpilot.com
    John Evans2026-01-22

    Arrived in perfect condition, exactly what was ordered

    Collected by Trustpilot.com
    Mariette House2026-01-09

    Catches air contanimets as advertised. Very high quality.

    Collected by Trustpilot.com
    Annie Faulkner2026-01-08

    Good quality, work well!

    Collected by Trustpilot.com
    Johnnie2025-12-29

    Good fit and product

    Collected by Trustpilot.com
    Sheridan2025-12-15

    Works but not exactly same fit as Honeywell 20x25x4.

    Collected by Trustpilot.com
    Vicki2025-11-26

    Very nice filters, well constructed.

    Collected by Trustpilot.com
    Bill2025-11-24

    Easy purchase. Good product. Fair price. Tnx.

    Collected by Trustpilot.com


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