18x30x1 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
MERV 8 18x30x1 SpiroPure O
MERV 8 Pleated Filters (6 Pack)
  • $46.99
  • 6 Filters
  • ($7.83/filter)
MERV 8
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3 Months $31.33/yr

$46.99
6 Filters

($7.83/filter)
18x30x1 MERV8 SpiroPure O
MERV 8 Pleated Filters (12 Pack)
  • $92.99
  • 12 Filters
  • ($7.75/filter)
MERV 8
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3 Months $31.00/yr
Best Value!

$92.99
12 Filters

($7.75/filter)
MERV 11 18x30x1 SpiroPure O
MERV 11 Pleated Filters (6 Pack)
  • $48.99
  • 6 Filters
  • ($8.17/filter)
MERV 11
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3 Months $32.66/yr

$48.99
6 Filters

($8.17/filter)
18x30x1 MERV11 SpiroPure O
MERV 11 Pleated Filters (12 Pack)
  • $97.99
  • 12 Filters
  • ($8.17/filter)
MERV 11
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3 Months $32.66/yr

$97.99
12 Filters

($8.17/filter)
MERV 13 18x30x1 SpiroPure O
MERV 13 Pleated Filters (6 Pack)
  • $61.99
  • 6 Filters
  • ($10.33/filter)
MERV 13
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3 Months $41.33/yr

$61.99
6 Filters

($10.33/filter)
18x30x1 MERV13 SpiroPure O
MERV 13 Pleated Filters (12 Pack)
  • $123.99
  • 12 Filters
  • ($10.33/filter)
MERV 13
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3 Months $41.33/yr

$123.99
12 Filters

($10.33/filter)
MERV Rating - Contaminant Removal Guide
MERV Rating   8 11 12 13
Lint & Dust  
Dust Mile Debris  
Pollen  
Mold Spores  
Pet Dander  
Auto Emissions  
Smoke  
Tobacco  
Bacteria  
Note: equals efficient removal of contaminant by filter.