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Filterbuy 18x24x4 MERV 11 Pleated Air Filter (4-Pack) made in USA

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$112 USD
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Filterbuy 18x24x4 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 17.50 x 23.38 x 3.63)

MERV 11 pleated air filters for furnace/AC/heat pump. Helps capture dust and allergens with electrostatic media. Some customers report good fit and air quality, while others note size discrepancies

Highlights

  • MERV 11 synthetic media
  • captures dust and allergens
  • 4-pack for replacement cycles

Pros

  • MERV 11 filtration
  • Electrostatic pleated media
  • Universal compatibility
  • Made in USA
  • Includes 4-pack

Cons

  • Actual size may differ from stated
  • Some reports of restricted airflow for certain furnaces

Best For

  • home HVAC filtration
  • allergen reduction
  • pet dander control
  • dust reduction in living spaces
  • furnace/air conditioner/heat pump maintenance

Features

  • Universal 18x24x4 replacement filter for furnaces, air conditioners, and heat pumps
  • MERV 11 synthetic media captures dust and allergens with 95% efficiency while maintaining airflow
  • Electrostatically charged, 8 pleats per foot for extended filtration life (replace every 90 days)
  • Beige beverage board frames with dual wire backing offer durable construction under temperature stress
  • Made in the USA from industrial-grade, recyclable materials for indoor air quality

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