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20" x 21" x 5" Lennox Alternate Replacement Air Filter

Please select a filter rating below.

Actual Size: 20" x 20 5/8" x 4 3/8"

 
Filtrete HVAC Basic MERV 8
Lowe's Model # 3MR.LX052020M08
Lowe's Item # 485823
MERV Rating MERV 8
 
Change Frequency 6 Months
2 Pack Price
$54.05
$27.03 Each
 
Equipment Protection
Lint and Dust
Pollen
Pet Dander
Mold Spores
Dust Mites
Fine Dust -
Auto Emissions -
Smoke -
Very Fine Dust -
Bacteria -
Tobacco Smoke -
 
Filtrete HVAC Basic MERV 11
Lowe's Model # 3MR.LX052020M11
Lowe's Item # 485831
MERV Rating MERV 11
 
Change Frequency 6 Months
2 Pack Price
$63.25
$31.63 Each
 
Equipment Protection
Lint and Dust
Pollen
Pet Dander
Mold Spores
Dust Mites
Fine Dust
Auto Emissions
Smoke
Very Fine Dust
Bacteria -
Tobacco Smoke -
 
Filtrete HVAC Basic MERV 13
Lowe's Model # 3MR.LX052020M13
Lowe's Item # 485841
MERV Rating MERV 13
 
Change Frequency 6 Months
2 Pack Price
$70.15
$35.08 Each
 
Equipment Protection
Lint and Dust
Pollen
Pet Dander
Mold Spores
Dust Mites
Fine Dust
Auto Emissions
Smoke
Very Fine Dust
Bacteria
Tobacco Smoke -
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