11.375x23.375x4 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
SpiroPure O
MERV 8 Pleated Filters (6 Pack)
  • $78.99
  • 6 Filters
  • ($13.17 / filters)
MERV 8
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3 Months $52.66
Best Value!

$78.99
6 Filters

($13.17 / filter)
SpiroPure O
MERV 11 Pleated Filters (6 Pack)
  • $92.99
  • 6 Filters
  • ($15.50 / filters)
MERV 11
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3 Months $61.99

$92.99
6 Filters

($15.50 / filter)
SpiroPure O
MERV 13 Pleated Filters (6 Pack)
  • $104.99
  • 6 Filters
  • ($17.50 / filters)
MERV 13
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3 Months $69.99

$104.99
6 Filters

($17.50 / filter)
SpiroPure F
MERV 10 Odor Eliminator Filters (6 Pack)
  • $217.68
  • 6 Filters
  • ($36.28 / filters)
MERV 10
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3 Months Learn more
about odor eliminator filters
$145.12

$217.68
6 Filters

($36.28 / 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.