21 x 26 x 5 MERV 11 Aftermarket Replacement Filter

Product ID RDP.AS052126M11
21 x 26 x 5 MERV 11  Aftermarket Replacement Filter product photo Front View thumbnail
Actual Size: 20.1" x 25.7" x 5
  • MERV 11, MPR 1000-1200, FPR 7 (more info)
  • Fights lint, dust mites, mold spores, pollen, pet dander, dust, and smoke.
  • Every 12 Months
  • Qualifies for Free Shipping
  • Price Match Guarantee, View terms and conditions
View Terms and Conditions
  • 55.74 1-Pack (55.74 each)
  • 88.96 2-Pack (44.48 each)
  • 126.33 3-Pack (42.11 each)
  • 160.08 4-Pack (40.02 each)
  • 197.00 5-Pack (39.40 each)
  • 224.64 6-Pack (37.44 each)

IMPORTANT: NDUSTRIA™ infrared heaters are transported on a pallet(s) via a full-size or short semi-trailer. Please be aware that a forklift may be required to unload. Also, delivery may not be available in certain residential areas. Please contact NDUSTRIA™ for questions on shipping or for special shipping instructions.

Why Should I Change My Air Filter?

If you have postponed changing the air filter in your unit more than once, you probably do not realize how important it is and why. Over time, the fan motor could burn out, causing the system to overheat and ultimately fail. A new filter protects the system and helps it run years longer.

Product Details

Nominal Size
26" x 21" x 5"
Actual Size
20.1" x 25.7" x 5"
Micro Allergen
Deep Pleat
MERV Rating
MPR Rating
MPR 1000-1200
FPR Rating
Captured Particle Size
1-3 Microns
High Capacity
Lead Time
6 Business Days

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:

  • American Standard AFM210A0AH0, BAYFTAH26M, TFM260A0AH00, TFM260A0AH10, TFM260B0AH01, TFM260B0AH0A

Actual Dimensions:

20.1" x 25.7" x 5"