11x37.5x1 Air Filters

Sort by:
Products   MERV Rating Filter Life Annual Cost Value Pack
11x37.5x1 MERV8 SpiroPure O
MERV 8 Pleated Filters (6 Pack)
  • $127.15
  • 6 Filters
  • ($21.19/filters)
MERV 8
Learn more
3 Months $84.77
Best Value!

$127.15
6 Filters

($21.19/filter)
11x37.5x1 MERV11 SpiroPure O
MERV 11 Pleated Filters (6 Pack)
  • $128.65
  • 6 Filters
  • ($21.44/filters)
MERV 11
Learn more
3 Months $85.77

$128.65
6 Filters

($21.44/filter)
11x37.5x1 MERV13 SpiroPure O
MERV 13 Pleated Filters (6 Pack)
  • $143.13
  • 6 Filters
  • ($23.86/filters)
MERV 13
Learn more
3 Months $95.42

$143.13
6 Filters

($23.86/filter)
11x37.5x1 OdorBan SpiroPure F
MERV 10 Odor Eliminator Filters (6 Pack)
  • $197.28
  • 6 Filters
  • ($32.88/filters)
MERV 10
Learn more
3 Months Learn more
about odor eliminator filters
$131.52

$197.28
6 Filters

($32.88/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.