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Aprilaire 401 Replacement Air Filter for 2400 Air Cleaner

Aprilaire 401
Retail: $59.99
You Save: 30%
Buy 1 - 3 for $41.95 ea.
Buy 4+ for $35.95 ea.
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Filters Fast® DSG401M11FF Replacement for Aprilaire 401, 16x28x6 MERV11 - 2-Pack

FF-Aprilaire 401
$25.98 per Filter
Retail: $70.99
You Save: 27%
Buy 1 - 2 for $51.95 ea.
Buy 3+ for $46.95 ea.
Ships in 1 to 2 business days.
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6 - 12 Months
Filter Life
6 - 12 Months
MERV Rating
Reduces Dust
Reduces Pollen
Reduces Mold Spores
Reduces Pet Dander
Reduces Smoke & Smog
Reduces Allergens
Reduces Bacteria
Reduces Virus Carriers

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Aprilaire 401
FiltersFast FF-Aprilaire 401

Tackle up to 99% of pollen, mold, spores, dust and other airborne allergens inside your home with the Aprilaire 401, 2400 replacement whole house air filter media. How is that possible? Patented SelfSeal technology combines with the electrostatically charged MERV 10 rated filter media to cut air gaps for more effective particle capture rate and less pressure drops. To say it simply, air coming out the other side of the filter is cleaner and it stays that way much longer. Clean air means better breathing. For those with allergies or other respiratory illnesses this should come as a relief. We spend much of our time indoors so keeping the air we breathe pollution free is big step to healthier lungs and body.

Aprilaire 401, 2400 Filter Specifications:

  • Part Number: 401 2400, SG401
  • MERV Rating: MERV 10
  • Dimensions: 16" x27" x6"
  • Filter Life: 6 - 12 months
  • OEM Part: Yes
  • Collapsible filter media
  • Genuine Aprilaire replacement filter
  • Replacement Filter for Spacegard Aprilaire Model 2400
  • Remove up to 95% of tobacco smoke
  • Removes up to 99% of dust, lint, pollen, dust mite debris
  • Note the correct spelling is Aprilaire, and not April Air, April Aire or Aprilair

The Aprilaire 401, 2400 fits most air cleaner models that use 16" x27" x6" sized filters with the following numbers:


  • Spacegard 2400


  • AC-4, AC24


  • PMAC-12C

If you don't see your model number, check with the manufacturer to verify compatibility.

Compatible Models:

The Aprilaire 401 is correct replacement for the following model numbers:

  • Spacegard Aprilaire 2400


Customer Reviews:

Total Reviews: 6 | Average Rating: 4.85 / 5.0

My only complaint is that is difficult for me to install in the frame in goes in.

Collected by

This product is easy to replace which makes me do it more often. I'm always surprised at the amount of dust and animal hair the filter catches. I'm extremely happy with this filter.

Collected by

Good product; good service

Collected by

Great experience ordering with FiltersFast. Arrived as expected. Will definitely order from them again.

Collected by

love receiving our filters on time every 6 months without having to worry about it.

Collected by

I upgraded my Aprilaire system to the newer Spacegard 2400/Aprilaire 240. The retrofit was easy to install and the filters are easier to replace than the old Aprilaire system. The filters are superior. Glad I found, they had what I needed!

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