Trane Air Filters

Trane is a leading brand in heating, ventilation, and air conditioning (HVAC) systems for both residential and commercial customers. Trane's whole-house air filtration systems are designed to protect their systems and keep them running in peak condition. All Filters carries genuine Trane air filters, pre-filters, and other OEM Parts for Trane whole-house air cleaner cabinets (5" thick sizes) and other components. Browse by size to locate in-stock Trane products or quality SpiroPure compatible alternatives.
Trane BAYFTFR14M2

Trane BAYFTFR14M2 Air Filter 14.5x27x5 MERV 8

List Price: $133.99

Our Price: $66.99

Save: $67.00!
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Replace every 6-12 months
Trane BAYFTFR17M2

Trane BAYFTFR17M2 Air Filter 17.5x27x5 MERV 8

List Price: $139.99

Our Price: $69.99

Save: $70.00!
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Replace every 6-12 months
Trane BAYFTFR21M2A

Trane BAYFTFR21M2A Air Filter 21x27x5 MERV 8

List Price: $151.99

Our Price: $75.99

Save: $76.00!
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Replace every 6-12 months
Trane BAYFTAH23M2

Trane BAYFTAH23M2 Air Filter 23.5x21x5 MERV 8

List Price: $141.99

Our Price: $70.99

Save: $71.00!
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Replace every 6-12 months
Trane BAYFTFR24M2A

Trane BAYFTFR24M2A Air Filter 24.5x27x5 MERV 8

List Price: $157.99

Our Price: $78.99

Save: $79.00!
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Replace every 6-12 months
Trane BAYFTAH26M2A

Trane BAYFTAH26M2A Air Filter 21x26x5 MERV 8

List Price: $145.99

Our Price: $72.99

Save: $73.00!
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Replace every 6-12 months
Trane BAYFTAH21M2

Trane BAYFTAH21M2 Air Filter 21.5x21x5 MERV 8

List Price: $137.99

Our Price: $68.99

Save: $69.00!
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Replace every 6-12 months
Trane BAYFRAME145A

Trane BAYFRAME145A Filter Frame Kit 14.5x27x5

List Price: $391.99

Our Price: $195.99

Save: $196.00!
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Replace media every 6-12 months
Trane BAYFRAME175

Trane BAYFRAME175 Filter Frame Kit 17.5x27x5

List Price: $233.99

Our Price: $116.99

Save: $117.00!
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Replace media every 6-12 months
Trane BAYFRAME210A

Trane BAYFRAME210A Filter Frame Kit 21x27x5

List Price: $253.99

Our Price: $126.99

Save: $127.00!
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Replace media every 6-12 months
Trane BAYFRAME235A
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Trane BAYFRAME235A Filter Frame Kit 21x23.5x5

List Price: $223.99

Our Price: $111.99

Save: $112.00!
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Replace media every 6-12 months
Trane BAYFRAME245A

Trane BAYFRAME245A Filter Frame Kit 24.5x27x5

List Price: $267.99

Our Price: $133.99

Save: $134.00!
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Replace every 6-12 months
Trane BAYFRAME260A

Trane BAYFRAME260A Filter Frame Kit 26x21x5

List Price: $249.99

Our Price: $124.99

Save: $125.00!
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Replace every 6-12 months
Trane BAYFTAH21P4

Trane BAYFTAH21P4 FLR05045 Air Filter 21x21.5x1 MERV 8 (4 Pack)

List Price: $141.99

Our Price: $70.99

Save: $71.00!
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Replace every 6 months
Trane BAYFTAH26P4A

Trane BAYFTAH26P4A Air Filter 26x21x1 MERV 8 (4 Pack)

List Price: $147.99

Our Price: $73.99

Save: $74.00!
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Replace every 6 months
Trane BAYFTFR14P4A

Trane BAYFTFR14P4A Air Filter 14.5x27x1 MERV 8

List Price: $75.99

Our Price: $37.99

Save: $38.00!
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Replace every 1-3 months
Trane BAYFTFR17P4A

Trane BAYFTFR17P4A Air Filter 17.5x27x1 MERV 8 (4 Pack)

List Price: $183.99

Our Price: $91.99

Save: $92.00!
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Replace every 1-3 months
Trane BAYFTAH21P4

Trane BAYFTAH21P4 FLR05045 Air Filter 21x21.5x1 MERV 8 (4 Pack)

List Price: $141.99

Our Price: $70.99

Save: $71.00!
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Replace every 6 months
Trane BAYFTFR24P4A

Trane BAYFTFR24P4A Air Filter 24.5x27x1 MERV 8 (4 Pack)

List Price: $185.99

Our Price: $92.99

Save: $93.00!
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Replace every 3 months
Trane FLRQB5FR21M11

Trane QuikBox Envirowise 20.2" x 26" x 4.7" Air Filter FLRQB5FR21M11 (2 Pack)

List Price: $183.99

Our Price: $91.99

Save: $92.00!
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Replace every 6-12 months
Trane FLRQB5FR17M11

Envirowise 16.7x26x4.7 Trane Air Filter FLRQB5FR17M11 QuikBox (2 Pack)

List Price: $159.99

Our Price: $79.99

Save: $80.00!
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Replace every 6-12 months
Trane FLRQB5AH23M11

Trane FLRQB5AH23M11 Envirowise 22.7x20.7x4.7 MERV 11 QuikBox Filters (2 Pack)

List Price: $173.99

Our Price: $86.99

Save: $87.00!
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Replace every 6-12 months
Trane BAYFTAHEXM2

Trane Air Filter BAYFTAHEXM2 5" Expandable Media (2 Pack)

List Price: $141.99

Our Price: $70.99

Save: $71.00!
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Replace every 6-12 months
Trane BAYFTFREXM2

Trane BAYFTFREXM2 Expandable Furnace Filter Media (2 Pack)

List Price: $151.99

Our Price: $75.99

Save: $76.00!
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Replace every 6-12 months
Trane BAYFTFR14W1A

Trane BAYFTFR14W1A Pre-Filter 14.5x27x1

List Price: $77.99

Our Price: $38.99

Save: $39.00!
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Trane BAYFTFR17W1A

Trane BAYFTFR17W1A Pre-Filter 17.5x27x1

List Price: $81.99

Our Price: $40.99

Save: $41.00!
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Trane BAYFTFR21W1A

Trane BAYFTFR21W1A Pre-Filter 21x27x1

List Price: $89.99

Our Price: $44.99

Save: $45.00!
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Trane BAYFTFR24W1A

Trane BAYFTFR24W1A PreFilter 24.5x27x1

List Price: $95.99

Our Price: $47.99

Save: $48.00!
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Key Features of Trane Air Filters

Many Trane whole-house air filters use a two-component system: a reusable filter frame that mounts in your HVAC cabinet and a replaceable media insert that slides into the frame. The media does the filtration work and is the only component that requires periodic replacement, typically every 6 to 12 months depending on household conditions. Trane filters are sized to fit Trane air filter cabinets precisely, often using non-standard dimensions that require OEM or exact-spec replacement media from SpiroPure. Measure carefully and chat with a customer service representative at All Filters if you are unsure. Standard media is rated MERV 8, which captures dust, pollen, mold spores, and similar household particles effectively for most residential applications.

Why Choose Trane Filters?

Trane's filtration systems are designed to work specifically with Trane HVAC equipment. Their often proprietary, nominal frame dimensions and media specifications are engineered for precise fit and consistent airflow performance. Using OEM Trane and filter frame media inserts ensures your system performs as designed and that filter replacement doesn't introduce airflow gaps or fitment issues that can allow unfiltered air to bypass the media. All Filters carries select OEM Trane filters or quality SpiroPure alternatives, often with free shipping. All Filters is a reliable source for all your furnace air filters.

FAQs on Trane Air Filter

What are Trane furnace filters?

Trane furnace filters are OEM replacement media inserts for Trane whole-house HVAC and air cleaner systems. Some Trane products use a two-part design: a durable reusable frame that installs in the HVAC cabinet and a replaceable media insert that captures airborne particles to protect equipment and indoor air quality.
Whole-house 5" Trane air filters should be replaced every 6 to 12 months under normal residential conditions. Households with pets, allergy sufferers, or high system runtime may need to replace closer to the 6-month mark. The reusable Trane frame does not need replacement unless it is physically damaged.
No. Trane air filters are single-use replacements to ensure optimal filtration. Trane air filter media inserts use pleated filtration material that is not designed to be washed or cleaned. Attempting to wash pleated media disrupts the fiber structure and permanently reduces filtration efficiency. The Trane filter frame, however, is reusable and durable.
"Trane air filter cleaning" typically refers to maintaining the reusable filter frame unique to Trane's filter cabinets. Trane recommends wiping it down when you swap media inserts. The media insert itself cannot be cleaned and must be replaced on schedule.
Allfilters.com sells a selection of genuine Trane air filters organized by part number and nominal size. Search by your Trane part number (such as BAYFTFR14M2 or BAYFTFR21M2A) to find the exact replacement for your system or identify a compatible SpiroPure alternative.