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)
  • $95.99
  • 6 Filters
  • ($16.00/filter)
MERV 8
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3 Months $63.99/yr
Best Value!

$95.99
6 Filters

($16.00/filter)
Geothermal 24x28x2 SpiroPure O
MERV 11 Geothermal Filters (6 Pack)
  • $112.99
  • 6 Filters
  • ($18.83/filter)
MERV 11
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3 Months $75.33/yr

$112.99
6 Filters

($18.83/filter)
24x28x2 MERV13 SpiroPure O
MERV 13 Geothermal Filters (6 Pack)
  • $115.99
  • 6 Filters
  • ($19.33/filter)
MERV 13
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3 Months $77.33/yr

$115.99
6 Filters

($19.33/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.