AIRx 20x20x4TT-ALLERGY | Our#: 177889

20x20x4 AIRx ALLERGY TopTech TT-FM-2020 Replacement Air Filter - MERV 11

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AIRx 20x20x4TT-ALLERGY | Our#: 177889

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Reduce common allergy symptoms

  • Reduces allergy irritating particles
  • Captures allergens like dust, mold spores, pet dander, dust mite debris and more
  • Lessens odors from car fumes & smog
  • Creates cleaner indoor air
  • Actual Dimensions: 19⅜" x 19⅜" x 3¾"
  •  Free Shipping & Returns
  •  100% Compatibility Guarantee
Frequently Purchased Together

Product Details

Is this the right air filter for you?

If you want superior indoor air quality (IAQ) for your family, this filter is for you!    This filter removes many allergy-causing polutants like pollen and dust mite debris and keeps your air clean.   We promise convenient ordering and complete satisfaction!

  • Quality 4" pleated air filter offers improved filtration and longer service life over common 1" filters 
  • MERV 11 rating means the filter attracts and holds husehold allergens like dust, pollen, mold spores, and other small particles that irriate your lungs
  • Replaces the TopTech TT-FM-2020 filter - nominal size 20x20x4 (actual size 19-3/8" x 19-3/8" x 3-3/4")
  • Will also replce the new TopTech "QwikBox" filter, part number TT-FM-2020QB
  • Replace every 6 months under normal use
  • Made with pride in the USA
  • 100% free shipping and returns on all filters

What does this air filter remove?

What part numbers does this filter replace?

  • Toptech TT-FM-2020, TT-FM-2020QB

Do you want to know about the technical specs?

Nominal Dimensions
20 x 20 x 4"
Actual Dimensions
19⅜ x 19⅜ x 3¾"
Filter Media
Electrostatically charged 100% synthetic gradient media that does not support microbiological growth
Filter Support Grid
30 gauge galvanized expanded metal grid
Moisture resistant double-wall beverage board
Max Temperature
180F (82C) continuous service, peak 225F (107C)
Max Humidity
Resistant to 100% R.H.

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