TIER1_DPFT21X26X5AM11_2PK

Tier1 brand replacement for Trane BAYFTAH26M - 21 x 26 x 5 - MERV 11 (2-Pack)

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What's this?

Upgraded media rated at MERV 11 to capture 90% of particles, 1-3 microns in size
Replacement for: Trane BAYFTAH26M, FLR06074 and Honeywell TRN2621T1
Up to twenty times more effective than ordinary fiberglass filters.
This product is listed and rated by Underwriters Laboratories as U.L. Class 2

Features & Specs

Package Qty: 2

Manufacturer's Id: DPFT21X26X5AM11

UPC: 799932611469

Actual Size (in): (Including Gasket) 21 inches (length) x 25-3/4 inches (width) x 4-7/8 inches (depth)

Primary Filter Media: Pleated Fabric

Brand: Tier1

Advertised Size: 21 x 26 x 5

Depth (in): 5 in

Length (in): 20.1 in

Width (in): 25.7 in

MERV Rating: MERV:11

Microparticle Performance Rating (MPR): MPR:1000

Filter Life

Filter Life (months): 3 months

Frequently Asked Questions

What are the exact dimensions of the Tier1 DPFT21X26X5AM11 air filter?

The Tier1 DPFT21X26X5AM11 is a 5-inch deep-pleated whole-house air filter with actual dimensions of approximately 20-1/4" x 25-3/8" x 5-1/4" (nominal 21x26x5). It is specifically designed as a replacement for Amana, Goodman, Five Seasons, and Electro-Air M1-1056 media filters. This 2-pack is engineered to fit compatible HVAC cabinets without modification, ensuring a tight seal and maximum airflow efficiency.

What is the MERV rating and what does the Tier1 DPFT21X26X5AM11 capture?

The Tier1 DPFT21X26X5AM11 carries a MERV 11 rating, meaning it captures 65–85% of airborne particles in the 1.0–3.0 micron range. It effectively traps dust, pollen, pet dander, mold spores, smoke, smog, and lint, as well as finer particles like auto emissions and microscopic allergens. MERV 11 is the recommended balance for households with pets, allergy sufferers, or mild respiratory concerns without restricting HVAC airflow.

How often should I replace the Tier1 DPFT21X26X5AM11 media filter?

The Tier1 DPFT21X26X5AM11 is designed to last up to 12 months under typical residential conditions, though Tier1 recommends inspecting it every 6 months. Homes with pets, smokers, or high dust levels may require replacement every 6–9 months. The 2-pack conveniently provides a full year or more of filtration, and the deep-pleated design offers significantly more surface area than 1-inch filters, extending service life.

Is the Tier1 DPFT21X26X5AM11 compatible with my existing HVAC system?

Yes, the Tier1 DPFT21X26X5AM11 is a direct replacement for Amana M1-1056, Goodman M1-1056, Electro-Air M1-1056, and Five Seasons FS-2125 media air cleaners using 21x26x5 filter cabinets. It fits standard 5-inch media air cleaner housings without requiring adapters. Always verify your current filter's printed dimensions (not just nominal size) before ordering to ensure proper fit and sealing.

Does the Tier1 DPFT21X26X5AM11 restrict airflow or affect HVAC performance?

No, the Tier1 DPFT21X26X5AM11 is engineered with a deep-pleated electrostatic synthetic media that maximizes dust-holding capacity while maintaining low initial resistance. The 5-inch depth provides roughly 10x more filtration surface area than a standard 1-inch filter, allowing your HVAC blower to operate efficiently at MERV 11 performance without strain. This extends equipment life and helps maintain consistent heating and cooling output.

Tier1 brand replacement for Trane BAYFTAH26M - 21 x 26 x 5 - MERV 11 (2-Pack)

Frequently Asked Questions

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