18x28x1 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
18x28x1 MERV8 SpiroPure O
MERV 8 Pleated Filters (6 Pack)
  • $101.80
  • 6 Filters
  • ($16.97 / filters)
MERV 8
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3 Months $67.87
Best Value!

$101.80
6 Filters

($16.97 / filter)
18x28x1 MERV11 SpiroPure O
MERV 11 Pleated Filters (6 Pack)
  • $117.40
  • 6 Filters
  • ($19.57 / filters)
MERV 11
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3 Months $78.27

$117.40
6 Filters

($19.57 / filter)
18x28x1 MERV13 SpiroPure O
MERV 13 Pleated Filters (6 Pack)
  • $156.06
  • 6 Filters
  • ($26.01 / filters)
MERV 13
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3 Months $104.04

$156.06
6 Filters

($26.01 / filter)
18x28x1 OdorBan SpiroPure F
MERV 10 Odor Eliminator Filters (6 Pack)
  • $142.80
  • 6 Filters
  • ($23.80 / filters)
MERV 10
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3 Months Learn more
about odor eliminator filters
$95.20

$142.80
6 Filters

($23.80 / 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.