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Filterbuy 21x21x1 MERV 13 Air Filter (2-Pack) – 20.88" x 20.88" x 0.75"

Filterbuy ★ 4.1/5 · ItemOracle Score Mid-Range

$47 USD
Price subject to change
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Filterbuy 21x21x1 Air Filter MERV 13 Optimal Smoke & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 20.88 x 20.88 x 0.75)

Air filters with MERV 13 synthetic media for improved air quality and HVAC efficiency. customers note good quality and easy installation, though some report sizing variance

Highlights

  • MERV 13 performance
  • Universal 21x21x1 compatibility
  • Made in USA

Pros

  • MERV 13 filtration
  • Easy to install
  • Effective dust reduction
  • Universal 21x21x1 compatibility
  • Made in USA

Cons

  • Size may vary from advertised
  • Mixed build quality feedback

Best For

  • furnace filter replacement
  • air conditioner filter replacement
  • heat pump filtration
  • allergy and dust control
  • home or small business HVAC filtering
  • electrostatic pleated filter replacement

Features

  • Fits 21x21x1 filters (actual 20.88 x 20.88 x 0.75) for furnaces, air conditioners, or heat pumps
  • MERV 13 media captures particles with minimal airflow restriction
  • Electrostatically charged pleated design with 16 pleats per foot for longer-lasting filtration
  • Durable beverage board frame with dual wire backing for improved temperature resistance
  • Made in the USA using industrial-grade, recyclable materials

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