18x32x2 Geothermal Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
18x32x2 MERV8 SpiroPure O
MERV 8 Geothermal Filters (6 Pack)
  • $162.11
  • 6 Filters
  • ($27.02 / filters)
MERV 8
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3 Months $108.07
Best Value!

$162.11
6 Filters

($27.02 / filter)
18x32x2 MERV11 SpiroPure O
MERV 11 Geothermal Filters (6 Pack)
  • $174.46
  • 6 Filters
  • ($29.08 / filters)
MERV 11
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3 Months $116.31

$174.46
6 Filters

($29.08 / filter)
18x32x2 MERV13 SpiroPure O
MERV 13 Geothermal Filters (6 Pack)
  • $194.43
  • 6 Filters
  • ($32.41 / filters)
MERV 13
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3 Months $129.62

$194.43
6 Filters

($32.41 / 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.