11x37.5x1 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
11x37.5x1 MERV8 SpiroPure O
MERV 8 Pleated Filters (6 Pack)
  • $149.17
  • 6 Filters
  • ($24.86 / filters)
MERV 8
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3 Months $99.45
Best Value!

$149.17
6 Filters

($24.86 / filter)
11x37.5x1 MERV11 SpiroPure O
MERV 11 Pleated Filters (6 Pack)
  • $150.89
  • 6 Filters
  • ($25.15 / filters)
MERV 11
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3 Months $100.59

$150.89
6 Filters

($25.15 / filter)
11x37.5x1 MERV13 SpiroPure O
MERV 13 Pleated Filters (6 Pack)
  • $167.94
  • 6 Filters
  • ($27.99 / filters)
MERV 13
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3 Months $111.96

$167.94
6 Filters

($27.99 / filter)
11x37.5x1 OdorBan SpiroPure F
MERV 10 Odor Eliminator Filters (6 Pack)
  • $197.28
  • 6 Filters
  • ($32.88 / filters)
MERV 10
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3 Months Learn more
about odor eliminator filters
$131.52

$197.28
6 Filters

($32.88 / 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.