17.5x20x4 Air Filters

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Products   MERV Rating Filter Life Annual Cost Value Pack
17.5x20x4 MERV8 SpiroPure O
MERV 8 Pleated Filters (6 Pack)
  • $144.57
  • 6 Filters
  • ($24.10 / filters)
MERV 8
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3 Months $96.38
Best Value!

$144.57
6 Filters

($24.10 / filter)
17.5x20x4 MERV11 SpiroPure O
MERV 11 Pleated Filters (6 Pack)
  • $183.49
  • 6 Filters
  • ($30.58 / filters)
MERV 11
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3 Months $122.33

$183.49
6 Filters

($30.58 / filter)
17.5x20x4 MERV13 SpiroPure O
MERV 13 Pleated Filters (6 Pack)
  • $189.23
  • 6 Filters
  • ($31.54 / filters)
MERV 13
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3 Months $126.15

$189.23
6 Filters

($31.54 / filter)
17.5x20x4 OdorBan SpiroPure F
MERV 10 Odor Eliminator Filters (6 Pack)
  • $258.48
  • 6 Filters
  • ($43.08 / filters)
MERV 10
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3 Months Learn more
about odor eliminator filters
$172.32

$258.48
6 Filters

($43.08 / 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.