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Filters Fast - Filter. Purify. Protect.

BAYFTAH26M Filters Fast® Replacement for Trane BAYFTAH26M 21x26x5 MERV 8 Furnace & AC Air Filter - 2-Pack

FFC26215TRNM8

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Frequently Bought With This Item

The Filters Fast® Replacement for Trane BAYFTAH26M 21x26x5 MERV 8 Furnace & AC Air Filter – 2-Pack is a compatible replacement for Trane Perfect Fit air cleaner systems. It captures dust, pollen, pet dander, and smoke to help improve indoor air quality and protect HVAC equipment.

Note: These filters do not contain fiberglass.

Key Benefits:

  • Traps airborne particles that contribute to allergy symptoms and respiratory irritation.
  • Captures dust and other airborne debris before they accumulate inside heating and cooling equipment.
  • 5-inch filter design provides substantial surface area for capturing airborne particles.
  • Designed as a compatible replacement for Trane Perfect Fit air cleaner systems.

Specifications:

  • Brand: Filters Fast®
  • Part Number: FFC26215TRNM8
  • Alternative Part Number: DTR8.521262PFF
  • Pack Size: 2
  • MERV Rating: 8
  • Nominal dimensions: 21" x 26" x 5"
  • Actual dimensions: 20.1" x 25.7" x 5"
  • Initial Resistance @ 295 fpm: .1
  • Final Resistance @ 295 fpm: 0.50

Compatible Parts:

The BAYFTAH26M Filters Fast® Replacement for Trane BAYFTAH26M 21x26x5 MERV 8 Furnace & AC Air Filter - 2-Pack is the correct replacement for the following part numbers:

Part Number
  • DTR8.0521262PFF
  • DTRBAYFRAME260A
  • FFCOK26215TRN
  • DISCOUNT FILTERS 1101797
  • HONEYWELL TRN2621T1
  • QUALITY FILTERS SBPFH26MGQP
  • QUALITY FILTERS SBPFH26MMQP
  • QUALITY FILTERS SBPFH26MOB
  • TIER 1 DPFT21X26X5A
  • TIER 1 DPFT21X26X5AM11
  • TIER 1 DPFT21X26X5AM13
  • TIER 1 DPFT21X26X5AM8
  • TRANE BAYFTAH26M
  • TRANE FLR06074
  • No results for {X}

Compatible Models:

The BAYFTAH26M Filters Fast® Replacement for Trane BAYFTAH26M 21x26x5 MERV 8 Furnace & AC Air Filter - 2-Pack is correct replacement for the following model numbers:

BrandModel NumberDescription
  • Trane TFM260A0AH1 Air Purifier
  • Trane TFM260B0AH0 Air Purifier
  • Trane TFP260A0AH00 Air Purifier
  • Trane TFP260A0AH10 Air Purifier
  • Trane TFP260A0AH11 Air Purifier
  • No results for {X}

Frequently Asked Questions:

How do you install the Filters Fast® Replacement for Trane BAYFTAH26M?

  1. Open access door by lifting the handle and pulling the bottom of the door toward you. Remove door completely.
  2. Tilt used Filters Fast® Replacement for Trane BAYFTAH26M filter cartridge to allow filter to be removed from cabinet. Pull used filter cartridge from cabinet.
  3. Discard dirty Filters Fast® Replacement for Trane BAYFTAH26M filter cartridge in plastic bag in which replacement filter was received.
  4. Slide new Filters Fast® Replacement for Trane BAYFTAH26M filter cartridge into cabinet with “AIR FLOW” arrow pointing in the direction of air flow. Care shall be exercised to place filter cartridge in angle holders on bottom and side of cabinet.
  5. Replace access door.

How often should you replace the Filters Fast® Replacement for Trane BAYFTAH26M?

Changing your Filters Fast® Replacement for Trane BAYFTAH26M is a very quick and easy process that should be done once every six to twelve months.

What contaminants does the Filters Fast® Replacement for Trane BAYFTAH26M reduce?

The Filters Fast® Replacement for Trane BAYFTAH26M is a MERV 8 air filter, which means that it reduces the following contaminants:

  • Dust
  • Pollen
  • Mold Spores

How often should I check my Filters Fast® Replacement for Trane BAYFTAH26M air filter?

Check your filter every 1–3 months for visible dirt buildup or restricted airflow. Homes with pets, higher dust levels, or frequent HVAC use may require more frequent monitoring.

Can I upgrade from a MERV 8 filter to a MERV 11 or MERV 13 filter?

Possibly. Higher MERV ratings capture smaller airborne particles, but they can also restrict airflow more than MERV 8 filters. Check your manufacturer's recommendations before upgrading to ensure your system can handle the increased filtration.

Can I use this filter year-round for both heating and cooling?

Yes. The compatible Trane Perfect Fit filtration system can use the same filter during both heating and cooling seasons, provided it is properly maintained and replaced as needed.

What happens if I install the filter backward?

Installing an air filter backward can reduce filtration effectiveness and potentially affect airflow. Always follow the airflow-direction arrows printed on the filter frame when installing a replacement.

How should I store the extra filter from the 2-pack?

Store the unused filter in its original packaging in a clean, dry location away from moisture, excessive heat, and dust. Keeping it sealed helps protect the filter media until it is needed.


Customer Reviews:

Total Reviews: 21 Average Rating: 4.7 / 5.0

Filtersfast Reviews on Trust Pilot external site (opens in a new tab)
Bill Ringle2026-07-27

Easy to order. Arrived promptly.

Collected by Trustpilot.com
Bill Burnette2026-07-21

Filter is a perfect fit.

Collected by Trustpilot.com
John E. Brannfors2026-04-29

Appreciate home delivery..

Collected by Trustpilot.com
R Sutton2026-04-13

These filters fit our Trane perfectly with no difference noted between these and the original filters.

Collected by Trustpilot.com
Gary Christensen2025-09-29

We sold the house 8 months ago. I did not place this order and sent you a message to that effect asking you to retrieve the shipment and credit any charges you had made. I didn't even get the courtesy of a reply. I had been a customer for many years. Gary Christensen. 239 398 4020

Collected by Trustpilot.com
Custodio Valencia2025-08-17

This product is consistent with filtering much dust and is very reliable. I will continue entrusting in this company and product for all my future HVAC needs.

Collected by Trustpilot.com
Michael Warshauer2025-03-15

It fits. Quick and fast service

Collected by Trustpilot.com
Donald Eckley2025-03-10

Perfect. Thanks

Collected by Trustpilot.com
John E. Brannfors2025-03-08

Delivery complete and timely. Thanks!

Collected by Trustpilot.com
Thomas Rohtsalu2025-02-21

Excellent timely service, thank you! \uD83D\uDE03

Collected by Trustpilot.com
Carolinalef2025-02-11

cam as expected. if you require 10 letters fat a review, I will stop giving them.

Collected by Trustpilot.com
customer2025-01-21

Of the package of 2 filters, one was in perfect shape. The frame of the other one was partially crushed. Was able to push the frame into an almost good fit. The outside shipping box was in perfect shape, meaning that the crushing happened before packing.

Collected by Trustpilot.com
Michelle2024-12-01

Great fit, works well!

Collected by Trustpilot.com
Thomas Rohtsalu2024-04-01

Great filters for less cost, thanks!

Collected by Trustpilot.com
Ed Dianic2023-04-20

Excellent quality. Fit perfectly. Works great.

Collected by Trustpilot.com
John Cabeza2023-02-10

Good fit Easy installation

Collected by Trustpilot.com
Jim Crocker2022-12-19

Good product - Good service - Good price.

Collected by Trustpilot.com
Helen Knox2022-10-27

Great prices and speedy delivery!

Collected by Trustpilot.com
Bernie Schurade2022-05-20

Had a hard time sliding the filter in but otherwise all is good.

Collected by Trustpilot.com
customer2022-02-25

Perfect replacement.

Collected by Trustpilot.com

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