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)
    5 stars
  • $45.31
  • 6 Filters
  • ($7.55 / filters)
MERV 8
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3 Months $30.21
Best Value!

$45.31
6 Filters

($7.55 / filter)
18x22x1  MERV8 SpiroPure O
MERV 8 Pleated Filters (12 Pack)
    5 stars
  • $90.62
  • 12 Filters
  • ($7.55 / filters)
MERV 8
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3 Months $30.21
Best Value!

$90.62
12 Filters

($7.55 / filter)
MERV 11 18x22x1 SpiroPure O
MERV 11 Pleated Filters (6 Pack)
    5 stars
  • $50.46
  • 6 Filters
  • ($8.41 / filters)
MERV 11
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3 Months $33.64

$50.46
6 Filters

($8.41 / filter)
18x22x1 MERV11 SpiroPure O
MERV 11 Pleated Filters (12 Pack)
    5 stars
  • $100.92
  • 12 Filters
  • ($8.41 / filters)
MERV 11
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3 Months $33.64

$100.92
12 Filters

($8.41 / filter)
MERV 13 18x22x1 SpiroPure O
MERV 13 Pleated Filters (6 Pack)
    5 stars
  • $61.79
  • 6 Filters
  • ($10.30 / filters)
MERV 13
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3 Months $41.19

$61.79
6 Filters

($10.30 / filter)
18x22x1 MERV13 SpiroPure O
MERV 13 Pleated Filters (12 Pack)
  • $123.58
  • 12 Filters
  • ($10.30 / filters)
MERV 13
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3 Months $41.19

$123.58
12 Filters

($10.30 / 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.