30x30x2 Geothermal Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
30x30x2 MERV8 SpiroPure F
MERV 8 Geothermal Filters (6 Pack)
  • $117.99
  • 6 Filters
  • ($19.67/filter)
MERV 8
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3 Months $78.66/yr
Best Value!

$117.99
6 Filters

($19.67/filter)
30x30x2 MERV11 SpiroPure F
MERV 11 Geothermal Filters (6 Pack)
  • $154.99
  • 6 Filters
  • ($25.83/filter)
MERV 11
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3 Months $103.33/yr

$154.99
6 Filters

($25.83/filter)
30x30x2 MERV13 SpiroPure F
MERV 13 Geothermal Filters (6 Pack)
  • $124.99
  • 6 Filters
  • ($20.83/filter)
MERV 13
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3 Months $83.33/yr

$124.99
6 Filters

($20.83/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.