23.5x27.5x4 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
23.5x27.5x4 MERV8 SpiroPure O
MERV 8 Pleated Filters (6 Pack)
  • $313.29
  • 6 Filters
  • ($52.22 / filters)
MERV 8
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3 Months $208.86
Best Value!

$313.29
6 Filters

($52.22 / filter)
23.5x27.5x4 MERV11 SpiroPure O
MERV 11 Pleated Filters (6 Pack)
  • $340.46
  • 6 Filters
  • ($56.74 / filters)
MERV 11
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3 Months $226.97

$340.46
6 Filters

($56.74 / filter)
23.5x27.5x4 MERV13 SpiroPure O
MERV 13 Pleated Filters (6 Pack)
  • $368.06
  • 6 Filters
  • ($61.34 / filters)
MERV 13
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3 Months $245.37

$368.06
6 Filters

($61.34 / filter)
23.5x27.5x4 Carbon SpiroPure F
MERV 10 Odor Eliminator Filters (6 Pack)
  • $319.74
  • 6 Filters
  • ($53.29 / filters)
MERV 10
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3 Months Learn more
about odor eliminator filters
$213.16

$319.74
6 Filters

($53.29 / 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.