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Filterbuy 18x36x1 MERV 11 Air Filter (4-Pack) 17.50x35.50x0.75

Filterbuy ★ 4.0/5 · ItemOracle Score Mid-Range

$90 USD
Price subject to change
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Filterbuy 18x36x1 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 35.50 x 0.75)

MERV 11 pleated air filters for furnaces, air conditioners, or heat pumps. Helps capture dust and allergens with universal replacement compatibility. One customer noted good fit and reduced dust, while some report fit or airflow concerns

Highlights

  • MERV 11 synthetic media
  • universal 18x36x1 compatibility
  • electrostatic pleated efficiency

Pros

  • universal compatibility
  • MERV 11 filtration
  • electrostatic pleated design
  • made in usa
  • holds dust without restricting airflow (per performance claim)

Cons

  • some customers report fit issues
  • some report restricted airflow
  • actual size discrepancy concerns

Best For

  • furnace filter replacement
  • air conditioner filter replacement
  • heat pump filter replacement
  • pets and allergy protection
  • home air-quality improvement

Features

  • Universal 18x36x1 replacement filters for furnaces, air conditioners, or heat pumps
  • MERV 11 filtration captures 95% of dust with synthetic media
  • Electrostatically charged pleated media with 14 pleats per foot for longer life
  • Durable beverage board frame with dual wire backing for temperature resistance
  • Made in the USA from recyclable materials in 100% domestic production

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