Name: 21x26x5 Replacement Air Filter for Trane BAYFTAH26M Air System by Aerostar
Brand: Trane
SKU: RDP.TR052126M08-6
Price: 196.02 USD
Availability: InStock

How to Measure Your Filter

Steps 1 & 2

Measuring Length and Width (L x W). (If your filter is not a square, the smallest measurement goes first).

Step 3

Measure the thickness (Depth) of your filter from front to back.

Step 4

Put Your measurements together (L x W x D).

Actual Size

A filter’s true dimensions.

Example: 19.75” x 19.75” x 1”

Nominal Size

Rounded numbers used by manufacturers.

Example 20” x 20” x 1”

View Detailed Instructions

21x26x5 Replacement Air Filter for Trane BAYFTAH26M Air System by Aerostar

Save 20%

Select Your MERV Rating:

Clean

MERV 8

Traps: lint, dust, mold spores

["Lint","Dust","Mold Spores"]

Allergy

MERV 11

Traps: pollen, pet dander, smoke, auto emissions

["Pollen","Pet dander","Smoke","Auto emissions"]

Health

MERV 13

Traps: bacteria and virus carriers

[" Bacteria and virus carriers"]

Select the Number of Filters:

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About 21x26x5 Replacement Air Filter for Trane BAYFTAH26M Air System by Aerostar

Actual Size: 20.1"x25.7"x5" Product: RDP.TR052126M08-6 8 Fights: Dust & Pollen

Direct replacement for the Trane BAYFTAH26M air handler filter cabinet, sized at an actual 20.1" x 25.7" x 5". The BAYFTAH26M is the OEM filter slot on a range of Trane and American Standard residential variable-speed and two-stage systems, parallel to the BAYFTFR17M but for larger-tonnage units. Trane-branded refills through dealer parts counters run substantially more than this Aerostar replacement, with the same pleated media spec and the same dimensional fit. MERV 8 covers baseline household filtration. MERV 11 handles pet households and mild allergy concerns. MERV 13 captures fine particulates - smoke, bacteria, virus carriers - the recommended grade for households with respiratory health issues or in wildfire-affected regions. The 5-inch depth gives you 6 to 12 months of service life in typical residential use. Pressure drop across a 5-inch pleated filter is minimal even at MERV 13, which is what makes whole-house deep-media filtration practical. Pleated synthetic electrostatic media handles the work, manufactured by Con-Air Industries in Orlando, Florida. The cardboard frame is reinforced for the higher airflow rates Trane variable-speed blowers can generate. If your Trane has a static-pressure-monitoring interface, that's a useful tool to verify filter performance across its service life.

Air Filter Type: Deep Pleat

FPR Rating: FPR 5

Quality: Dust & Pollen

Captured Particle Size: 3-10 Microns

Material: Deep Pleat

Capacity: High Capacity

MERV Rating: 8

SKU: RDP.TR052126M08-6

MPR Rating: MPR 600

GTIN/UPC: 849330066184

Lead Time: 5 Business Day

MERV 8, MPR 600, FPR 5
Fights lint, dust mites, mold spores, pollen, pet dander, and dust.
Every 6 Months
Qualifies for

This whole house air filter is designed for residential use. By providing cleaner air, this filter reduces the risk of allergens in the home. It is effective at capturing particles like dust, pollen and mold spores from the air passing through the filter. It is also designed to be effective at attracting and capturing microscopic particles that can carry bacteria and viruses. This filter lasts for up to 12 months before needing replacement.

Replaces brand and part number:

Trane BAYFTAH26M, TFM260A0AH00, TFM260A0AH10, TFM260B0AH01, TFM260B0AH0A

Actual Dimensions:

20.1" x 25.7" x 5"

What is a MERV Rating?

MERV ratings let you know the efficiency and level of filtration that an air filter can handle under normal circumstances. The higher the MERV rating, the finer the particles are that are filtered our of the air in your home. Many air filter retailers use MERV or a similar rating to rate their air filters.

About MERV, MPR and FPR Rating

MERV Rating (Minimum Efficiency Reporting Value):

MERV Rating is the primary rating system used in the industry, both domestically and internationally. Established by the American Society of Heating, Refrigerating, and Air Conditioning Engineers, MERV rates a filter’s ability to capture and hold particles and pollutants.

MPR (Micro-Particle Performance Rating):

MPR Rating is a rating system developed by 3M. It rates the manufacturer’s Filtrete product line and their ability to capture airborne particles smaller than 1 micron.

FPR (Filter Performance Rating):

FPR Rating is a rating system developed by The Home Depot for brands sold through their stores, including Honeywell. It utilizes a color code and number scale (4 to 10) that closely resembles the MERV rating.

Overall rating: 5.0 / 5 from 6 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["quality","delivery","service"].

Review highlights

Reviews

Excellent quality and shipping was

"Excellent quality and shipping was speedy"

— John R. (5/5)

First class service

"Fantastic product and first class service- I will not buy from anywhere else."

— Robert S. (5/5)

Great Produc

"Great Delivery Time"

— Sandra S. (5/5)

MERV 13

"Been using FactoryDirectFilters for Ten(10) years.Their prices, fast shipping and their MERV13 21 x 26 x 5 are the best. About to palce another order"

— Jeff (5/5)

21x26x5 filter replacement

"Factory Direct expedited my two filter order for which I'm grateful. These are the third set of filters I've purchased in the past several years, but only the first to have a foam gasket on the outside perimeter of the filter housing creating a really nice seal when inserted into the air handler filter housing. Thanks!"

— Phil W. (5/5)