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Filters Fast® FFC21235TRNM8 Replacement for Filters Fast® FFC21235TRN OKGM 21x23.5x5 MERV 8 Air Filter - 2-Pack

FFC21235TRN OKGM

$59.95
Only $29.98 per Filter
Retail: $80.99 /ea
You Save: 26%
As low as
$59.95
Retail: $80.99
You Save: 26%
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Frequently Bought With This Item

The Filters Fast® FFC21235TRNM8 Replacement for Filters Fast® FFC21235TRN OKGM 21x23.5x5 MERV 8 Air Filter effectively reduces pet dander, dust, pollen and smoke from your indoor air. Removing these airborne particles can help improve allergies and alleviate sinus irritation that can cause watery eyes, itchy throat, coughing, and sneezing. Aside from the health benefits, having a Filters Fast® Air Filter in your home will also extend the life of your heating and cooling system by making it work more efficiently.

Specifications:

  • Brand: Filters Fast®
  • Part Number: FFC21235TRNM8
  • Alternative Part Number: DTR8.05212352PFF
  • Replaces Part Number: FFC21235TRN OKGM
  • Pack Size: 2
  • Nominal dimensions: 21" x 23.5" x 5"
  • Actual dimensions: 20-1/8" x 23-1/4" x 4-7/8"
  • MERV Rating: 8
  • Filter Life: Up to 6 months depending on indoor air quality
  • Perfect Fit Series
  • 100% synthetic gradient media
  • Final Resistance @ 295 fpm: 0.50
  • Initial Resistance @ 295 fpm: .80

Compatible Parts:

The Filters Fast® FFC21235TRNM8 Replacement for Filters Fast® FFC21235TRN OKGM 21x23.5x5 MERV 8 Air Filter - 2-Pack is the correct replacement for the following part numbers:

Part Number
DTR8.05212352PFF
FFCOK21235TRN
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Customer Reviews:

Total Reviews: 9 Average Rating: 4.8 / 5.0

Filtersfast Reviews on Trust Pilot external site
Tom2025-08-04

Great filter have used it for a number of years

Collected by Trustpilot.com
Loren2025-04-19

They meet the specifications recommended by my HVAC maintenance company (also the installer of our system) but FiltersFast sells them at essentially half the cost charged by our system installer/maintainer.

Collected by Trustpilot.com
customer2025-03-21

Seems like it’s just going to slide right in, but every time it gets hung up on a protrusion along the bottom. I don’t think it’s a fault of the filter, though.

Collected by Trustpilot.com
Traci Lenart2025-02-14

Good value! Made in America!

Collected by Trustpilot.com
Shirley Atlas2023-05-28

Perfect fit.

Collected by Trustpilot.com
Julia Winsser2023-04-04

Doesn’t appear to be as sturdy as oem trane, but almost half of the cost makes it worth it. I’ve used them for a couple of years with no issue

Collected by Trustpilot.com
RICKEY PETERSON2023-03-27

THE FILTER LAST A LONG TIME AND THEY FIT REALLY GOOD

Collected by Trustpilot.com
Kerry Device2022-11-13

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Collected by Trustpilot.com
customer2022-07-20

They are great at shipping.

Collected by Trustpilot.com


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