18x20x2 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
MERV 8 18x20x2 SpiroPure O
MERV 8 Pleated Filters (6 Pack)
  • $53.55
  • 6 Filters
  • ($8.93 / filters)
MERV 8
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3 Months $35.70
Best Value!

$53.55
6 Filters

($8.93 / filter)
MERV 11 18x20x2 SpiroPure O
MERV 11 Pleated Filters (6 Pack)
  • $67.97
  • 6 Filters
  • ($11.33 / filters)
MERV 11
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3 Months $45.31

$67.97
6 Filters

($11.33 / filter)
MERV 13 18x20x2 SpiroPure O
MERV 13 Pleated Filters (6 Pack)
  • $76.21
  • 6 Filters
  • ($12.70 / filters)
MERV 13
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3 Months $50.81

$76.21
6 Filters

($12.70 / 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.