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Filterbuy 21x23x1 Air Filter, MERV 11, 12-pack

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$185 USD
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Filterbuy 21x23x1 Air Filter MERV 11 (MPR 1200) Allergen Defense Replacement (12-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 20.50 x 22.50 x 0.75)

Universal 21x23x1 replacement air filters with MERV 11 synthetic media for allergens. Provides 95% dust capture without restricting airflow; easy to install

Highlights

  • merv 11 synthetic media
  • captured 95% of dust
  • universal 21x23x1 size

Pros

  • universal compatibility
  • merv 11 filtration
  • high dust capture
  • easy to install
  • productive build quality

Cons

  • mixed feedback on dust collection capacity
  • size fit comments from customers

Best For

  • furnace filtration
  • air conditioner filtration
  • heat pump filtration
  • household allergen reduction
  • pet dander filtration
  • commercial space filtration

Features

  • Universal 21x23x1 replacement filters for furnaces, ACs, or heat pumps
  • MERV 11 media with MPR 1200; captures 95% of dust without reducing airflow
  • Electrostatically charged, 14 pleats per foot for extended filtration life
  • Dual wire backing and beverage board frame improve durability and temperature resistance
  • Made in the USA with industrial-grade, recyclable materials

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