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Genuine AprilAire 210 20x25x4 MERV 11 Clean Air Filter

Aprilaire 210
$69.99
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AprilAire 210 Filters Fast® Replacement for AprilAire 210, 20x25x4 MERV 11 Clean Air Filter - Guaranteed Fit

FFC20254APRM11
$49.95


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Aprilaire 210
Filters Fast FFC20254APRM11
Filter Life
6 - 12 Months
6 - 12 Months
MERV Rating
MERV 11
MERV 11
Reduces Dust
Reduces Pollen
Reduces Mold Spores
Reduces Pet Dander
Reduces Smoke & Smog
Reduces Allergens
Reduces Bacteria
Reduces Virus Carriers
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Product Information
Frequently Bought With This Item

The AprilAire 210 20x25x4 MERV 11 Clean Air Filter is a high-efficiency HVAC air filter designed to improve indoor air quality by capturing dust, pollen, mold spores, pet dander, bacteria, and other airborne particles. It is compatible with select AprilAire air purifiers and HVAC systems that use 20x25x4 filters.

Key Benefits:

  • Patented Self-Seal™ Technology creates a tight seal ensuring that all air flowing through your HVAC system is actually filtered, maximizing the effectiveness of your air purification system.
  • The MERV 11 filtration performance helps trap smaller and more harmful particles than lower MERV-rated filters, making it a strong choice for homes with allergy or asthma concerns.
  • 6–12 months filter life reduces maintenance frequency compared to standard 1-inch filters.
  • Captures pet hair and dander that can circulate through the home making this an effective filter for pet owners.
  • Compatible with multiple AprilAire air purifier and air cleaner models, including 1210, 1620, 2200, 2210, 2216, 2250, 3210, and 4200 systems.
  • Easy installation and replacement process with a slide-in design made for compatible AprilAire systems.

Specifications:

  • Brand: AprilAire
  • Part Number: AprilAire 210
  • Pack Size: 1
  • Filter Life: 6 - 12 months
  • MERV Rating: 11
  • Nominal Dimensions: 20 x 25 x 4
  • Actual Dimensions: 20 1/8" x 25 1/4" x 4 1/8"

Compatible Parts:

The AprilAire Aprilaire 210 is the correct replacement for the following part numbers:

Part Number
SOURCE1 S1-FM210
No results for {X}

Compatible Models:

The AprilAire Aprilaire 210 is correct replacement for the following model numbers:

BrandModel NumberDescription
Aprilaire APRILAIRE 1210 Air Purifier
AprilAIre APRILAIRE 1620 Air Purifier
AprilAire APRILAIRE 2200 Air Purifier
Aprilaire APRILAIRE 2210 Air Purifier
Aprilaire APRILAIRE 2216 Air Purifier
AprilAire APRILAIRE 2250 Air Purifier
Aprilaire APRILAIRE 3210 Air Purifier
Aprilaire APRILAIRE 4200 Air Purifier
No results for {X}

Frequently Asked Questions:

How do you install the AprilAire 210?

  1. Locate your home's thermostat, set the mode to "OFF" and set the fan to "AUTO".
  2. Open the door to your AprilAire air purifier and remove the old AprilAire 210 filter that's currently installed.
  3. Prior to installing the new AprilAire 210 filter, ensure the air flow arrow points toward the HVAC unit. Align the entry points on the filter with the top and bottom of the interlock rail system.
  4. Once the AprilAire 210 has been connected to the air purifier, push it into the system. Then, close the air purifier.
  5. Return your home's thermostat to its original settings.

How often should you replace the AprilAire 210?

Changing your AprilAire 210 is a very quick and easy process that should be done once every six to twelve months.

What contaminants does the AprilAire 210 reduce?

The AprilAire 210 is a MERV 11 air filter, which means that it reduces the following contaminants:

  • Dust
  • Pollen
  • Mold Spores
  • Pet Dander
  • Smoke & Smog
  • Allergens

What does MERV 11 actually mean?

MERV (Minimum Efficiency Reporting Value) 11 means the filter captures a large range of particle sizes, including much smaller and more harmful particles than lower-rated filters capture. The MERV 11 rating makes it suitable for households with allergy or asthma concerns, effectively capturing common household allergens and contaminants like dust, pollen, pet dander, mold spores, and other particulates as air passes through your system. 

What should I do if airflow seems restricted?

If you notice reduced airflow or increased system noise, check the filter and replace it if clogged. A reduced airflow can indicate the filter is dirty and nearing the end of its usable life. Regular replacement every 6-12 months helps maintain good airflow.


Customer Reviews:

Total Reviews: 92 Average Rating: 4.95 / 5.0

Filtersfast Reviews on Trust Pilot external site
Judy Darling2026-04-05

Hard to work with

Collected by Trustpilot.com
David Margolin2026-04-05

Does the job well

Collected by Trustpilot.com
thomas e2026-03-04

Top notch product and service

Collected by Trustpilot.com
Sue Conterno2026-02-22

It’s the filter that has to be used for my HVAC system, and seems to be adequate.

Collected by Trustpilot.com
Katie2026-02-20

A little pricey compared to paper filters, but fits properly in air cleaner.

Collected by Trustpilot.com
Rick Marvin2026-01-13

Easy to install and works very well.

Collected by Trustpilot.com
customerROBERT TERRY2026-01-04

GGGGGGGGGGGGGGGGGGGGGGG

Collected by Trustpilot.com
customer2026-01-03

Have been using this filter for a couple of years since we got our new furnace. It does a great job. We have animals and it grabs a lot of hair as it filters.

Collected by Trustpilot.com
Robert Matthews2025-12-01

They are good.

Collected by Trustpilot.com
Annette Morrow2025-11-22

On-time shipping, good value.

Collected by Trustpilot.com
John Christensen2025-11-07

Made me forget that billionaire Nazi pedophiles are looting the nation

Collected by Trustpilot.com
Marilynn2025-11-04

great product!

Collected by Trustpilot.com
customGeorge2025-10-31

outstanding product

Collected by Trustpilot.com
Jesse2025-10-14

Seems to do the job and is what is required of my system.

Collected by Trustpilot.com
David Cochran2025-09-29

Nice, quick service!

Collected by Trustpilot.com
shoop2025-08-11

These work great in my heat pump system and save me some cash.

Collected by Trustpilot.com
Buddy2025-08-10

All points met or exceeded expectations.

Collected by Trustpilot.com
Scott2025-07-26

Efficient, easy to change, lasts months.

Collected by Trustpilot.com
Mary2025-07-26

Good filter

Collected by Trustpilot.com
Wendy Rowland2025-07-15

Have to buy this online so Filters Fast is a convenient way for subscription purchase so I don't forget to replace the filter at the start of summer.

Collected by Trustpilot.com



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