21.5x24x4 Accumulair Furnace Filter Merv 13

21.5x24x4 (Actual Size) APR 1950

Accumulair Replacement Filter

$31.67

  • MERV 13 Rating
  • Each filter lasts up to 3 months.
  • Electrostatically charged filter media captures airborne allergens smaller than 1 micron!
The Accumulair Diamond with its MERV 13 rating is one of the highest efficiency filters on the market!
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!
    Merv 13 furnace filters and AC filters can clean indoor air contaminants including household dust, pollen, pet dander, mold spores, cigarette smoke, microscopic allergens, virus carriers and more. HVAC filters with an electrostatic charge have fibers that contain both negative and positive charges in the filter fibers. The charged fibers attract dust and airborne particles to make your home's air clean and safe for you and your family. Indoor air quality can be even more polluted than outdoor air from mold, household cleaning products, pet dander and more. Given people spend almost 90% of the time indoors, make sure to change your home air filters regularly to avoid the long-term negative health effects of breathing in dirty air.
  • Type Furnace Filter
  • Item# FD21.5X24X4A
  • Brand Accumulair
  • Size 21.5x24x4
  • Actual 21.5x24x4

More Filters This Size (21.5x24x4)

  • APR 1550
$27.71
  • APR 650
$21.11
  • Carbon
$38.27
$21.11
Important Information


The manufacturer has discontinued the MERV 6 / APR 450 filters from their line up, our suggested replacement is the MERV 8 / APR 650 Gold filter, you may see the Emerald MERV 6 / APR 450 still on the website, we are actively removing that MERV/APR


** The typical ship time for orders is now around 15 to 20 business days **

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