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Filterbuy 20x21x5 MERV 11 Air Filter 3-Pack

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$130 USD
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Filterbuy 20x21x5 Air Filter MERV 11 Superior Pet & Allergy Defense (3-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement for Lennox and Electro-Air (Actual Size: 19.88 x 20.50 x 4.38)

20x21x5 air filters with MERV 11 synthetic media for allergens and pets. Improves HVAC efficiency. Customer notes good quality and value for money, with mixed fit feedback

Highlights

  • MERV 11 filtration
  • 3-pack value
  • electrostatic pleated media

Pros

  • MERV 11 allergen protection
  • Electrostatic pleated design
  • 3-pack for replacements
  • Compatible with Lennox and Electro-Air
  • Actual size close to nominal

Cons

  • Mixed feedback on fit
  • Actual size differs from nominal

Best For

  • furnace filter replacement
  • air conditioner filter replacement
  • heat pump filtration
  • allergen reduction in home
  • pet-dander filtration
  • home ventilation efficiency

Features

  • Fits 20x21x5 furnace/air handler with actual 19.88 x 20.50 x 4.38 size
  • MERV 11 synthetic media captures dust without reducing airflow
  • Electrostatically charged media; lasts longer than fiberglass models (3x)
  • Eight pleats per foot; recyclable beverage board frame with dual wire backing
  • Compatible with Lennox X8790 and PCO14-23 housing part numbers

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