21 1/4 x 21 1/4 x 1

Basic 21 1/4 x 21 1/4 x 1 MERV 6 / MPR 300 / FPR N/A
21 1/4 x 21 1/4 x 1 MERV 6 Fiberglass Air Filter
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  • Nominal Size: 21 1/4 x 21 1/4 x 1
    Actual size: 21 1/4" x 21 1/4" x 3/4"
    Performance: Basic
    Type: Fiberglass Air Filter
    Rating: MERV 6 | MPR 300 | FPR N/A
    Captured Particle Size: 3-100 Microns
    Change Frequency: Every 30 Days
    SKU#: D50S.0121D21D
    Lead Time: Ships in 3 Business Days
    Additional Info: View product page


  • Price (6 pack):
    $68.82 ($11.47 each)
  • SAVE 10% buying 12 or more
    Price (12 pack):

    $123.84 ($10.32 each)
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Dust & Pollen 21 1/4 x 21 1/4 x 1 MERV 8 / MPR 600 / FPR 5
21 1/4 x 21 1/4 x 1 MERV 8 Pleated Air Filter
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  • Nominal Size: 21 1/4 x 21 1/4 x 1
    Actual size: 21 1/4" x 21 1/4" x 3/4"
    Performance: Dust & Pollen
    Type: Pleated Air Filter
    Rating: MERV 8 | MPR 600 | FPR 5
    Captured Particle Size: 3-10 Microns
    Change Frequency: Every 60-90 Days
    SKU#: P80S.0121D21D
    Lead Time: Ships in 3 Business Days
    Additional Info: View product page


  • Price (6 pack):
    $73.62 ($12.27 each)
  • SAVE 10% buying 12 or more
    Price (12 pack):

    $132.48 ($11.04 each)
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Micro Allergen 21 1/4 x 21 1/4 x 1 MERV 11 / MPR 1000-1200 / FPR 7
21 1/4 x 21 1/4 x 1 MERV 11 Pleated Air Filter
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  • Nominal Size: 21 1/4 x 21 1/4 x 1
    Actual size: 21 1/4" x 21 1/4" x 3/4"
    Performance: Micro Allergen
    Type: Pleated Air Filter
    Rating: MERV 11 | MPR 1000-1200 | FPR 7
    Captured Particle Size: 1-3 Microns
    Change Frequency: Every 60-90 Days
    SKU#: P15S.0121D21D
    Lead Time: Ships in 3 Business Days
    Additional Info: View product page


  • Price (6 pack):
    $81.60 ($13.60 each)
  • SAVE 10% buying 12 or more
    Price (12 pack):

    $146.88 ($12.24 each)
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Ultimate Allergen 21 1/4 x 21 1/4 x 1 MERV 13 / MPR 1500-1900 / FPR 10
21 1/4 x 21 1/4 x 1 MERV 13 Pleated Air Filter
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  • Nominal Size: 21 1/4 x 21 1/4 x 1
    Actual size: 21 1/4" x 21 1/4" x 3/4"
    Performance: Ultimate Allergen
    Type: Pleated Air Filter
    Rating: MERV 13 | MPR 1500-1900 | FPR 10
    Captured Particle Size: 0.3-1.0 Microns
    Change Frequency: Every 60-90 Days
    SKU#: P25S.0121D21D
    Lead Time: Ships in 3 Business Days
    Additional Info: View product page


  • Price (6 pack):
    $97.62 ($16.27 each)
  • SAVE 10% buying 12 or more
    Price (12 pack):

    $175.68 ($14.64 each)
  • Subscribe to this product: Subscribe
PRODUCT
Details
MERV 6
MPR 300
FPR N/A
MERV 8
MPR 600
FPR 5
MERV 11
MPR 1000-1200
FPR 7
MERV 13
MPR 1500-1900
FPR 10
21 1/4 x 21 1/4 x 1Air Filter
SAVE 10%
buying a
12 Pack
or more
$123.84
$10.32 each
$132.48
$11.04 each
$146.88
$12.24 each
$175.68
$14.64 each
6 Pack Pricing
$68.82
$11.47 each
$73.62
$12.27 each
$81.60
$13.60 each
$97.62
$16.27 each
21 1/4" x 21 1/4" x 3/4" 21 1/4" x 21 1/4" x 3/4" 21 1/4" x 21 1/4" x 3/4" 21 1/4" x 21 1/4" x 3/4"
Change Frequency
Every 30 Days Every 60-90 Days Every 60-90 Days Every 60-90 Days
Lint
Dust Mites
Mold Spores
Pollen
Pet Dander
Fine Dust
Auto Emissions
Very Fine Dust
Smoke
Bacteria

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