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Filterbuy 20x21x1 MERV 11 Air Filter (3-Pack)

Filterbuy ★ 4.1/5 · ItemOracle Score Mid-Range

$55 USD
Price subject to change
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Filterbuy 20x21x1 Air Filter MERV 11 Superior Pet & Allergy Defense (3-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.50 x 20.50 x 0.75)

Filterbuy 20x21x1 air filters with MERV 11 synthetic media for improved particle capture. Customers note high quality and effective dust reduction, with occasional size discrepancies

Highlights

  • MERV 11 performance
  • universal 20x21x1 compatibility
  • electrostatic pleated design

Pros

  • universal compatibility
  • high quality construction
  • effective dust capture
  • improves air quality
  • durable and long-lasting

Cons

  • actual size may differ from expectations

Best For

  • furnace filtration
  • air conditioner filtration
  • heat pump filtration
  • allergy and pet dander protection
  • home or business HVAC maintenance
  • dust reduction in living spaces

Features

  • Universal 20x21x1 replacement filters for furnace, air conditioner, or heat pump
  • MERV 11 performance with synthetic media captures 95% of dust while maintaining airflow
  • Electrostatically charged 14 pleats per foot for longer-lasting filtration
  • Durable beverage board frames with dual wire backing for improved rigidity
  • Made in the USA from industrial-grade, recyclable materials

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