Filterbuy 21x22x1 MERV 13 air filter (4-pack) – 20.50 x 21.50 x 0.75

Filterbuy ★ 4.1/5 · ItemOracle Score Mid-Range

$90 USD
Price subject to change
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Filterbuy 21x22x1 Air Filter MERV 13 Optimal Smoke & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 20.50 x 21.50 x 0.75)

MERV 13 pleated air filters for furnace, AC, or heat pump. Improves air quality with synthetic media. Customers report easy installation and good value, with some noting size variance

Highlights

  • MERV 13 synthetic media
  • 20.50 x 21.50 x 0.75 actual size
  • 4-pack for multiple replacements

Pros

  • universal compatibility with furnace, AC, or heat pump
  • MERV 13 filtration captures fine particles
  • easy installation
  • includes multiple filters (4-pack)
  • made in USA

Cons

  • size reported as sometimes smaller than advertised
  • mixed opinions on build quality

Best For

  • furnace filter replacement
  • air conditioner filtration
  • heat pump filter for improved air quality
  • homes needing dust and allergen reduction
  • allergy or germ defense in indoor spaces
  • replacing worn pleated filters

Features

  • UNIVERSAL COMPATIBILITY 21x22x1 replacement air filters for your furnace
  • air conditioner
  • or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size 20. 50" x 21. 50" x 0. 75")
  • MERV 13 PERFORMANCE Protect your home or business from germs
  • bacteria
  • and more with MERV 13 synthetic media (comparable with MPR 1900 & FPR 10) that captures 98% of dust without restricting air flow
  • LASTING FILTRATION Electrostatically charged media with 16 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for best results)
  • SUPERIOR CONSTRUCTION Easy installation beverage board frames with dual wire backing outperform basic cardboard designs by improving durability and resisting extreme temperatures

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