Filterbuy Air Filter 20x21x5 MERV 11 (MPR 1200) 4-Pack

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$170 USD
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Filterbuy 20x21x5 Air Filter MERV 11 (MPR 1200) Allergen Defense Replacement (4-Pack), Pleated HVAC AC Furnace Filters for Lennox and Electro-Air (Actual Size: 19.88 x 20.50 x 4.38)

Pleated furnace filters with MERV 11 capture common allergens while maintaining airflow. Customers note good value, easy fit, and reliable performance, though some report sizing and fragile construction concerns

Highlights

  • MERV 11 synthetic media
  • Actual size close to 20x21x5
  • 4-pack for replacement cycles

Pros

  • MERV 11 filtration for allergens
  • Pleated media for airflow
  • Easy installation
  • Good value for money
  • Fits 20x21x5 size

Cons

  • Mixed reviews on exact fit size
  • Flimsy construction reported during installation
  • Potential for damage during handling

Best For

  • furnace filtration
  • air conditioner filtration
  • heat pump filtration
  • allergen reduction in homes
  • modern HVAC replacement
  • larger living spaces requiring 20x21x5 filters

Features

  • WHOLE HOUSE REPLACEMENT 20x21x5 air filters for your furnace
  • air conditioner
  • or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size 19. 88" x 20. 50" x 4. 38")
  • MERV 11 PERFORMANCE Protect your home or business from allergens
  • pets
  • and more with MERV 11 synthetic media (comparable with MPR 1200 & FPR 7) that captures 95% of dust without restricting air flow
  • LASTING FILTRATION Electrostatically charged media (made in the USA) with 8 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 (recyclable) frames with dual wire backing outperform basic cardboard designs by improving durability and resisting extreme temperatures

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