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TopTech TechPure DTT-FM-2020 OEM 20x20x4 Replacement Furnace Filter

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TopTech DTT-FM-2020 20x20x4 furnace filters are designed for the TechPure TT-MAC-2122 & TT-MAC-2020 air cleaners. They are rated at MERV 11 and remove many allergens, dust, pollen and other airborne pollutants. 

  • MERV 11
  • TopTech TechPure OEM Original Equipment Replacement Air Filter
  • Fits TechPure TT-MAC-2122 & TT-MAC-2020 Air Cleaners
  • Actual Size 19.375" x 19.375" x 3.75"

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Customer Reviews

Based on 6 reviews
Nicholas Mitchell
Filter Purchase

Very pleased as a good price, arrived on time as per order.
Have set myself up to get every 6 months. Arrived in good condition, fitted perfectly.

Charlene Crain
20x20x4 Merv 11 Filters

I ordered two filters. Both looked like they were sat on to varying degrees, one worse than the other. I straightened them both out and tried them in the filter spot and they slid in and back out with no problem. I had to try them because I didn't want to wait until months down the road to find out the crunching and reshaping wasn't going to work. The AC slot isn't very forgiving. But, they are fine. Maybe they were cheaper because they were crushed a bit and not fit for sale as "perfect". Its OK, I don't mind discounted scratch and dent as long as it is usable. The shipping box was in perfect condition, so the filters didn't get dented in transit, it had to be before they were put in the box. The shipping was amazingly fast, even though I don't need these for months, I stocked up a bit. I will continue to purchase from Atomic. And reading a below review, I see that if they are irreparably crushed they will replace. Glad I straightened them out and they fit fine. Just don't wait to test them if they are crunched up.

Hi Charlene, Sorry your filters were crushed. All items are brand new and we will replace damaged items even if the box does not look that badly damaged. Please send images of the box including any creases and the box label and the damaged items. Sometimes boxes crush but then retain their shape while crushing and damaging the filters. Please always report the damages asap so we can enter a claim and replace them for you.

Ronald Smith

Everything was as ordered thanks

Dean Naum
AC Filter Review Top Tech 20x20x4 Merv11

Great customer service. Received an order of 2 filters one of which was damaged. Contacted the company and within the same day they quickly approved sending a replacement filter at no cost. Within a few days the replacement filter was received. I could not believe how quickly the company acted.

Nikki Jones
Good service

Good price. Great customer service and fast delivery !