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)
  • $262.83
  • 6 Filters
  • ($43.81 / filters)
MERV 8
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3 Months $175.22
Best Value!

$262.83
6 Filters

($43.81 / filter)
23x48x2 MERV11 SpiroPure O
MERV 11 Geothermal Filters (6 Pack)
  • $284.19
  • 6 Filters
  • ($47.37 / filters)
MERV 11
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3 Months $189.46

$284.19
6 Filters

($47.37 / filter)
23x48x2 MERV13 SpiroPure O
MERV 13 Geothermal Filters (6 Pack)
  • $304.85
  • 6 Filters
  • ($50.81 / filters)
MERV 13
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3 Months $203.23

$304.85
6 Filters

($50.81 / 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.