18x22x1 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
MERV 8 18x22x1 SpiroPure O
MERV 8 Pleated Filters (6 Pack)
  • $38.99
  • 6 Filters
  • ($6.50/filter)
MERV 8
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3 Months $25.99/yr

$38.99
6 Filters

($6.50/filter)
18x22x1  MERV8 SpiroPure O
MERV 8 Pleated Filters (12 Pack)
  • $76.99
  • 12 Filters
  • ($6.42/filter)
MERV 8
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3 Months $25.66/yr
Best Value!

$76.99
12 Filters

($6.42/filter)
MERV 11 18x22x1 SpiroPure O
MERV 11 Pleated Filters (6 Pack)
  • $44.99
  • 6 Filters
  • ($7.50/filter)
MERV 11
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3 Months $29.99/yr

$44.99
6 Filters

($7.50/filter)
18x22x1 MERV11 SpiroPure O
MERV 11 Pleated Filters (12 Pack)
  • $88.99
  • 12 Filters
  • ($7.42/filter)
MERV 11
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3 Months $29.66/yr

$88.99
12 Filters

($7.42/filter)
MERV 13 18x22x1 SpiroPure O
MERV 13 Pleated Filters (6 Pack)
  • $67.99
  • 6 Filters
  • ($11.33/filter)
MERV 13
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3 Months $45.33/yr

$67.99
6 Filters

($11.33/filter)
18x22x1 MERV13 SpiroPure O
MERV 13 Pleated Filters (12 Pack)
  • $134.99
  • 12 Filters
  • ($11.25/filter)
MERV 13
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3 Months $45.00/yr

$134.99
12 Filters

($11.25/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.