Filters Fast 4" 20x20x4 Replacement for TopTech TT-FM-2020 3-Pack
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Filters Fast® 4" 20x20x4 Replacement for TopTech TT-FM-2020 3-Pack


Only $26.65 per Filter
Retail: $89.99 /ea
You Save: 11%
As low as
Retail: $89.99
You Save: 11%
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The Filters Fast® 4" MERV 11 20x20x4 Air Filter 3-Pack is the compatible replacement for the TopTech TT-FM-2020 Techpure 20x20x4 MERV 11 Air Filter. Save money and breathe better with these affordable and efficient air filters from Filters Fast®. These air filters effectively reduce pollen, dust, pet dander, mold spores, dust mites and other allergens from indoor air. These Filters Fast® air filters can also help improve allergies and alleviate sinus irritation that can cause watery eyes, itchy throat, coughing, and sneezing. These 20" x 20" x 4" MERV 11 air filters are also electrostatically charged and constructed with spun micro-fiber that will not retain moisture, which can lead to microbial growth. Continual use of these HVAC air filters will extend the life of your heating and cooling system by making it work more efficiently. Filters Fast® recommends replacing these HVAC air filters every six to twelve months for optimal performance and efficiency.


  • Brand: Filters Fast®
  • Part Number: FF4M11-2020
  • Replaces Part Number: TT-FM-2020
  • Pack Size: 3
  • Nominal Dimensions: 20 x 20 x 4
  • Actual Dimensions: 19-1/2 x 19-1/2 x 3-1/2
  • MERV Rating: 11
  • Filter Type: Electrostatic pleated
  • Material: Synthetic
  • Replace every 6 - 12 months
  • For commercial and residential use
  • Used in tt-mac-2122, tt-mac-2020

Note: These filters do not contain fiberglass.

Reviews from Trustpilot

Customer Reviews:

Total Reviews: 8 Average Rating: 5 / 5.0

Barbara Ruggiero2023-09-09

These filters are the best, because they fit perfectly.

Collected by

a good quality filter, for a good price

Collected by
Patricia Stamand2022-11-15

The filter is the exact size we ordered and was easy to put into our a/c handler.

Collected by
Felix Kelmes2022-10-02

Good filter, better than expected.

Collected by

excellent products at a fair price

Collected by

works well and 1/5 the price my AC guy wanted

Collected by
Mark Bumgarner2022-02-20

what i needed at a good price

Collected by

Fast shipping and beats the hell out of what the AC guy wanted for them.

Collected by

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