The Aprilaire 401 Comparable Filter by Tier1 (2-Pack) MERV 11 reduces allergens including bacteria, dust, pet dander, pollen, and smoke. It features a double wall construction, for additional frame strength. The Aprilaire 40...

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The Aprilaire 401 Comparable Filter by Tier1 (2-Pack) MERV 11 reduces allergens including bacteria, dust, pet dander, pollen, and smoke. It features a double wall construction, for additional frame strength. The Aprilaire 401 Comparable Filter by Tier1 (2-Pack) also helps protect your unit's coils from the potentially damaging effects of dust build up. Improve your air quality by ordering your new air filter from TIer1 today!

  • Designed to Fit: Aprilaire Air Cleaner Models 2400.
  • Actual Size: 15 3/8 inches (length) x 26 15/16 inches (width) x 6 inches (depth).
  • High Efficiency Filtration: Merv 11 Rating to reduce airborne particles like dust, pet dander, and more.
  • Easy & Quick Installation: Collapsible media designed to ensure easy installation.
  • Impurity Reduction: Reduces airborne impurities to improve your home air and climate quality.

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