18x24x1 Air Filters (Actual)

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Products   MERV Rating Filter Life Annual Cost Value Pack
18x24x1 MERV8 SpiroPure O
MERV 8 18x24x1 Filters (Actual Size)
  • $106.20
  • 6 Filters
  • ($17.70 / filters)
MERV 8
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3 Months $70.80
Best Value!

$106.20
6 Filters

($17.70 / filter)
18x24x1 MERV11 SpiroPure O
MERV 11 18x24x1 Filters (Actual Size)
  • $109.40
  • 6 Filters
  • ($18.23 / filters)
MERV 11
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3 Months $72.93

$109.40
6 Filters

($18.23 / filter)
18x24x1 MERV13 SpiroPure O
MERV 13 18x24x1 Filters (Actual Size)
  • $151.14
  • 6 Filters
  • ($25.19 / filters)
MERV 13
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3 Months $100.76

$151.14
6 Filters

($25.19 / filter)
18x24x1 OdorBan SpiroPure F
Odor Eliminator 18x24x1 Filters (Actual Size)
  • $129.24
  • 6 Filters
  • ($21.54 / filters)
MERV 10
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3 Months Learn more
about odor eliminator filters
$86.16

$129.24
6 Filters

($21.54 / 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.