18x24x4 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
MERV8 18x24x4 SpiroPure O
MERV 8 Pleated Filters (6 Pack)
  • $93.72
  • 6 Filters
  • ($15.62 / filters)
MERV 8
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3 Months $62.48
Best Value!

$93.72
6 Filters

($15.62 / filter)
MERV11 18x24x4 SpiroPure O
MERV 11 Pleated Filters (6 Pack)
    5 stars
  • $115.35
  • 6 Filters
  • ($19.23 / filters)
MERV 11
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3 Months $76.90

$115.35
6 Filters

($19.23 / filter)
MERV13 18x24x4 SpiroPure O
MERV 13 Pleated Filters (6 Pack)
  • $141.10
  • 6 Filters
  • ($23.52 / filters)
MERV 13
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3 Months $94.07

$141.10
6 Filters

($23.52 / filter)
odor eliminator 18x24x4 SpiroPure F
MERV 10 Odor Eliminator Filters (6 Pack)
  • $149.99
  • 6 Filters
  • ($25.00 / filters)
MERV 10
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3 Months Learn more
about odor eliminator filters
$99.99

$149.99
6 Filters

($25.00 / filter)
MERV Rating - Contaminant Removal Guide
MERV Rating   8 11 12 13
Lint & Dust  
Dust Mite Debris  
Pollen  
Mold Spores  
Pet Dander  
Auto Emissions  
Smoke  
Tobacco  
Bacteria  
Note: equals efficient removal of contaminant by filter.