20x20x4 Air Filters

Sort by:
Products   MERV Rating Filter Life Annual Cost Value Pack
MERV8 20x20x4 SpiroPure O
20x20x4 Pleated Filters (MERV 8)
  • $69.99
  • 6 Filters
  • ($11.67/filter)
MERV 8
Learn more
3 Months $46.66/yr
Best Value!

$69.99
6 Filters

($11.67/filter)
MERV11 20x20x4 SpiroPure O
20x20x4 Pleated Filters (MERV 11)
  • $88.99
  • 6 Filters
  • ($14.83/filter)
MERV 11
Learn more
3 Months $59.33/yr

$88.99
6 Filters

($14.83/filter)
MERV13 20x20x4 SpiroPure O
20x20x4 Pleated Filters (MERV 13)
  • $105.99
  • 6 Filters
  • ($17.67/filter)
MERV 13
Learn more
3 Months $70.66/yr

$105.99
6 Filters

($17.67/filter)
odor eliminator 20x20x4 SpiroPure F
20x20x4 Pleated Filters (OdorBan)
  • $121.99
  • 6 Filters
  • ($20.33/filter)
MERV 8
Learn more
3 Months Learn more
about odor eliminator filters
$81.33/yr

$121.99
6 Filters

($20.33/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.