TIER1_DPFT21X26X5AM8_2PK

Tier1 brand replacement for Trane BAYFTAH26M - 21 x 26 x 5 - MERV 8 (2-Pack)

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$80.67

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What's this?

Rated at MERV 8 to capture particles 3-10 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: DPFT21X26X5AM8

UPC: 799932611506

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:8

Microparticle Performance Rating (MPR): MPR:600

Filter Life

Filter Life (months): 3 months

Frequently Asked Questions

What are the exact dimensions and MERV rating of the Tier1 DPFT21X26X5AM8 air filter?

The Tier1 DPFT21X26X5AM8 has actual dimensions of 20.75" x 25.75" x 4.38" (nominal size 21x26x5) and carries a MERV 8 efficiency rating. This MERV 8 rating captures particles in the 3.0–10.0 micron range, including dust, pollen, lint, dust mites, and mold spores, making it an effective replacement for Electro-Air, Trion Air Bear, and Five Seasons whole-house furnace systems that use this specific size.

How long does the Tier1 DPFT21X26X5AM8 filter last before replacement?

The Tier1 DPFT21X26X5AM8 is designed to last up to 12 months under normal residential conditions. However, actual service life depends on indoor air quality factors such as pets, smoking, construction dust, and HVAC runtime. For homes with heavy usage, we recommend inspecting the filter every 3 months and replacing it every 6–9 months to maintain optimal airflow and filtration performance.

Which furnace and air cleaner models is the Tier1 DPFT21X26X5AM8 compatible with?

This 2-pack of Tier1 DPFT21X26X5AM8 filters is engineered as a direct replacement for Trion Air Bear 229990-103, Electro-Air 21x26x5, GeneralAire GF 4541, and Five Seasons FS2026 media air cleaners. Always verify your existing filter's actual dimensions (20.75" x 25.75" x 4.38") before ordering to ensure a proper, airtight fit within your media cabinet.

What makes the Tier1 DPFT21X26X5AM8 pleated design better than fiberglass filters?

The Tier1 DPFT21X26X5AM8 features an electrostatically charged, 8-pleat synthetic media that dramatically increases the surface area compared to flat fiberglass filters. This pleated design traps significantly more airborne particles while maintaining strong airflow, reducing strain on your blower motor. The reinforced beverage-board frame resists bending and moisture, ensuring the filter holds its shape throughout its 12-month service life.

Does the Tier1 DPFT21X26X5AM8 reduce allergens and improve indoor air quality?

Yes. With its MERV 8 rating, the Tier1 DPFT21X26X5AM8 captures common allergens including pollen, pet dander (larger particles), dust mite debris, and mold spores down to 3 microns. For households needing enhanced allergen or smoke reduction, consider upgrading to a higher-MERV Tier1 air filter option in the same 21x26x5 size for improved particle capture efficiency.

Tier1 brand replacement for Trane BAYFTAH26M - 21 x 26 x 5 - MERV 8 (2-Pack)

Frequently Asked Questions

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