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Filterbuy 18x24x4 MERV 11 HVAC Filter (6-Pack) 17.50" x 23.38" x 3.63"

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$151 USD
Price subject to change
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Filterbuy 18x24x4 Air Filter MERV 11 (MPR 1200) Allergen Defense Replacement (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters, Made in USA (Actual Size: 17.50 x 23.38 x 3.63)

Six-pack universal air filters with MERV 11 synthetic media for allergen capture and airflow. Customers note solid build and value, with some reports of fit and airflow variation

Highlights

  • merv 11 filtration
  • universal 18x24x4 compatibility
  • 6-pack with allergen defense

Pros

  • universal compatibility
  • high-efficiency MERV 11 filtration
  • electrostatic pleated design
  • made in USA
  • value for money (6-pack)

Cons

  • mixed airflow performance reports
  • size may be smaller than expected for some users
  • customer notes about fit in some slots

Best For

  • furnace filtration
  • air conditioner filtration
  • heat pump filtration
  • allergy defense in homes
  • dust reduction in households
  • replacement for standard filter slots

Features

  • Universal 18x24x4 replacement filter with actual size 17.50 x 23.38 x 3.63 inches
  • MERV 11 synthetic media captures 95% of dust and allergens while maintaining airflow
  • Electrostatically charged with 8 pleats per foot for longer filtration life
  • Dual wire backing and beverage board frame for durable construction

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