23x48x2 Geothermal Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
23x48x2 MERV8 SpiroPure O
MERV 8 Geothermal Filters (6 Pack)
  • $255.17
  • 6 Filters
  • ($42.53 / filters)
MERV 8
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3 Months $170.11
Best Value!

$255.17
6 Filters

($42.53 / filter)
23x48x2 MERV11 SpiroPure O
MERV 11 Geothermal Filters (6 Pack)
  • $275.91
  • 6 Filters
  • ($45.99 / filters)
MERV 11
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3 Months $183.94

$275.91
6 Filters

($45.99 / filter)
23x48x2 MERV13 SpiroPure O
MERV 13 Geothermal Filters (6 Pack)
  • $295.97
  • 6 Filters
  • ($49.33 / filters)
MERV 13
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3 Months $197.31

$295.97
6 Filters

($49.33 / 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.