18x24x1 Air Filters (Nominal)

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Products   MERV Rating Filter Life Annual Cost Value Pack
MERV 8 18x24x1 SpiroPure O
MERV 8 18x24x1 Filters (Nominal Size)
    5 stars
  • $44.28
  • 6 Filters
  • ($7.38 / filters)
MERV 8
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3 Months $29.52
Best Value!

$44.28
6 Filters

($7.38 / filter)
18x24x1 MERV8 SpiroPure O
MERV 8 18x24x1 Filters (Nominal Size)
    5 stars
  • $88.56
  • 12 Filters
  • ($7.38 / filters)
MERV 8
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3 Months $29.52
Best Value!

$88.56
12 Filters

($7.38 / filter)
MERV 11 18x24x1 SpiroPure O
MERV 11 18x24x1 Filters (Nominal Size)
    5 stars
  • $49.43
  • 6 Filters
  • ($8.24 / filters)
MERV 11
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3 Months $32.95

$49.43
6 Filters

($8.24 / filter)
18x24x1 MERV11 SpiroPure O
MERV 11 18x24x1 Filters (Nominal Size)
    5 stars
  • $98.86
  • 12 Filters
  • ($8.24 / filters)
MERV 11
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3 Months $32.95

$98.86
12 Filters

($8.24 / filter)
MERV 13 18x24x1 SpiroPure O
MERV 13 18x24x1 Filters (Nominal Size)
    5 stars
  • $57.67
  • 6 Filters
  • ($9.61 / filters)
MERV 13
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3 Months $38.45

$57.67
6 Filters

($9.61 / filter)
18x24x1 MERV13 SpiroPure O
MERV 13 18x24x1 Filters (Nominal Size)
  • $115.34
  • 12 Filters
  • ($9.61 / filters)
MERV 13
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3 Months $38.45

$115.34
12 Filters

($9.61 / filter)
18x24x1 Odor Eliminator SpiroPure F
Odor Eliminator 18x24x1 Filters (Nominal Size)
  • $74.99
  • 6 Filters
  • ($12.50 / filters)
MERV 10
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3 Months Learn more
about odor eliminator filters
$49.99

$74.99
6 Filters

($12.50 / filter)
18x24x1 OdorBan SpiroPure F
Odor Eliminator 18x24x1 Filters (Nominal Size)
  • $148.99
  • 12 Filters
  • ($12.42 / filters)
MERV 10
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3 Months Learn more
about odor eliminator filters
$49.66

$148.99
12 Filters

($12.42 / 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.