24x28x2 Geothermal Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
24x28x2 MERV8 SpiroPure O
MERV 8 Geothermal Filters (6 Pack)
    5 stars
  • $140.90
  • 6 Filters
  • ($23.48 / filters)
MERV 8
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3 Months $93.93
Best Value!

$140.90
6 Filters

($23.48 / filter)
Geothermal 24x28x2 SpiroPure O
MERV 11 Geothermal Filters (6 Pack)
    5 stars
  • $166.33
  • 6 Filters
  • ($27.72 / filters)
MERV 11
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3 Months $110.89

$166.33
6 Filters

($27.72 / filter)
24x28x2 MERV13 SpiroPure O
MERV 13 Geothermal Filters (6 Pack)
  • $183.90
  • 6 Filters
  • ($30.65 / filters)
MERV 13
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3 Months $122.60

$183.90
6 Filters

($30.65 / 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.