Ruud 21x21.5x4.5

Aftermarket Replacement by Accumulair

SKU: DPFU21X21X5M8=DRU

or 4 interest-free payments with


21x21x4.5 (20.75 x 20.75 x 4.38)

  • Great for reducing airborne particles such as dust, pollen, mold spores, tobacco smoke, pet dander, and particles that carry viruses.
  • Superior frame strength utilizing double-wall construction and die-cut fingers.
  • High-efficiency filter media collects small dust particles before they can collect on your coils.
  • Lasts up to 6 months!

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