30x30x1 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
MERV8 30x30x1 SpiroPure F
MERV 8 Geothermal Filters (6 Pack)
  • $67.99
  • 6 Filters
  • ($11.33/filter)
MERV 8
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3 Months $45.33/yr
Best Value!

$67.99
6 Filters

($11.33/filter)
MERV11 30x30x1 SpiroPure O
MERV 11 Geothermal Filters (6 Pack)
  • $86.99
  • 6 Filters
  • ($14.50/filter)
MERV 11
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3 Months $57.99/yr

$86.99
6 Filters

($14.50/filter)
MERV13 30x30x1 SpiroPure O
MERV 13 Geothermal Filters (6 Pack)
  • $90.99
  • 6 Filters
  • ($15.17/filter)
MERV 13
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3 Months $60.66/yr

$90.99
6 Filters

($15.17/filter)
MERV Rating - Contaminant Removal Guide
MERV Rating   8 11 12 13
Lint & Dust  
Dust Mile Debris  
Pollen  
Mold Spores  
Pet Dander  
Auto Emissions  
Smoke  
Tobacco  
Bacteria  
Note: equals efficient removal of contaminant by filter.