- MERV 13 Rating - The all new Accumulair Diamond with it's MERV 13 rating is the highest efficiency Accumulair filter on the market! - Efficiency Designed to meet the air filtration efficiency criteria required to gain points toward certification in the Leadership in Energy and Environmental Design (LEEDs) Green Building rating system. - Electrostatically charged filter media captures airborne allergens smaller than 1 micron! - Great for helping reduce airborne allergens such as bacteria, particles that carry viruses, pollen, mold spores, fine dust, and pet dander. - Accumulair filter material will not support the development of mold, mildew, bacteria or other microorganisms in normal use. - No chemicals added. Accumulair filters are chemical free! - Over 30-times more efficient at capturing micro particles than ordinary fiberglass filters. - Lasts UP TO 3 months! - This product is listed and rated by Underwriters Laboratories as U.L. Class 2.
  • Nominal Size: 18x20x2
  • Actual Size: 18x20x1-3/4
  • Part Number: FD18X20X2A
  • Package Quantity: 4-Pack

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