Filtrete 20x20x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 2 Filters
Filtrete 20x20x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 2 Filters
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Filtrete 20x20x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 2 Filters

Filtrete 20x20x4 Air Filter, MPR 1000, MERV 11, Allergen Defense 12-Month Deep Pleated 4-Inch Air Filters, 2 FiltersFiltrete High Performance Air Filter 1000 MPR NADP02 2PK 1E 20 in x 20 in x 4 in 50 8 cm x 50 8 cm x 10 1 cm3M Filtrete 25 in H x 20 in W x 4 in D Air FilterFiltrete High Performance Air Filter 1000 MPR NADP01 2PK 1E 16 in x 25 in x 4 in 40 6 cm x 63 5 cm x 10 1 cm
Size:2-Pack
Actual Color:20x20x4

Key item features

  • Filtrete 20x20x4, AC Furnace Air Filter, MPR
  • 1000 DP, Micro Allergen Defense Deep Pleat, 2
  • -Pack (actual dimensions 19.88 x 19.88 x 4.31)
Current price is $47.99
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  • Free shipping
  • Free 30-day returns

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4.3830442081701175 stars out of 5, based on 3574 seller reviews(4.4)
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4.7 out of 5 stars
stars349 ratings330 reviews
How item rating is calculated
  1. 5 stars79% (275)
  2. 4 stars19% (66)
  3. 3 stars1% (2)
  4. 2 stars1% (3)
  5. 1 star1% (3)

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Showing 1-3 of 330 reviews

Feb 27, 2016
mikemast44
5 out of 5 stars review

Been using for over 16 years!

Bought my home new in 2000 and to this day its the only filter I've ever used and trust. I change about every 3 months (more often in hot summers and less in mild spring when not in use). Highly recommend this product. My brother and mother also use 3M filters for many years in there homes too.

Review from filtrete.com
Helpful?1ZMMNBHIUH682867451319
Oct 5, 2010
FilterFitter
5 out of 5 stars review

Whiteness Helps You See Performance

The filter does a great job as evidenced by how infrequently we need to dust the house, and by how little dust and lint are on the blower fan blades of the AC/furnace. Beyone performance, one attibute I like is that the filter is super bright and white out of the package. Later when you remove it, you'll see how gray it has become from catching all the particles in the air. Separately, if the filter comes out curved instead of straight, you've left it in too long and were reducing the efficiency of your system. The reminder stickers help keep you on schedule.

Review from filtrete.com
Helpful?1ZMMNBHIUH682867451319
Oct 24, 2025
Mymy69
5 out of 5 stars review

Best purchase ever they are a 9

I try to always run the Filtrete 1000 Allergen Defense. It is a true life savor.

Review from filtrete.com
Helpful?1ZMMNBHIUH682867451319