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Filterbuy 21x21x1 Air Filter MERV 11 (3-Pack) Electrostatic Pleated Replacement

Filterbuy ★ 4.1/5 · ItemOracle Score Mid-Range

$45 USD
Price subject to change
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Filterbuy 21x21x1 Air Filter MERV 11 Superior Pet & Allergy Defense (3-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 20.88 x 20.88 x 0.75)

21x21x1 air filters with MERV 11 media for improved HVAC efficiency and allergen capture. Customers note high quality and effective dust filtration, with some sizing discrepancies

Highlights

  • MERV 11 synthetic media
  • universal 21x21x1 compatibility
  • three-pack value

Pros

  • universal compatibility
  • MERV 11 filtration
  • electrostatic pleated design
  • 3-pack for extended use
  • made in USA

Cons

  • actual size may differ slightly from expected
  • some sizing concerns reported

Best For

  • furnace filtration
  • air conditioner filtration
  • heat pump filtration
  • allergen reduction
  • pet dander filtration
  • dust particles capture

Features

  • Universal 21x21x1 replacement filters for furnaces, air conditioners, or heat pumps
  • MERV 11 with synthetic media captures 95% of dust and is compatible with MPR 1200 & FPR 7
  • Electrostatically charged media with 14 pleats per foot for longer-lasting filtration
  • Durable beverage board frames with dual wire backing resist extreme temperatures
  • Made in the USA from recyclable materials

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