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
  • $136.80
  • 6 Filters
  • ($22.80 / filters)
MERV 8
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3 Months $91.20
Best Value!

$136.80
6 Filters

($22.80 / filter)
Geothermal 24x28x2 SpiroPure O
MERV 11 Geothermal Filters (6 Pack)
    5 stars
  • $161.49
  • 6 Filters
  • ($26.92 / filters)
MERV 11
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3 Months $107.66

$161.49
6 Filters

($26.92 / filter)
24x28x2 MERV13 SpiroPure O
MERV 13 Geothermal Filters (6 Pack)
  • $178.54
  • 6 Filters
  • ($29.76 / filters)
MERV 13
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3 Months $119.03

$178.54
6 Filters

($29.76 / 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.