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Need a different depth?
Same size, deeper filter
Below is 11-1/2x11-1/2 at 1 naturalaire″. A thicker filter holds more before it loads up, so it lasts longer between changes and puts less strain on the blower — we carry the same width and height in the depths below.
Ordering for a building? Ask for volume pricing or call 1-866-469-8556.
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Up to $162 offVendor:AAF FlandersWAREHOUSE DEAL 29-1/2x19-1/2x1 NaturalAire Standard MERV 8
Only 1 leftRegular price $114.99Sale price $114.99 Regular priceUnit price Case of 12 $9.58/filter$276.99 -
MERV 10Vendor:AAF Flanders20x22x1 NaturalAire Microparticle MERV 10
Regular price $123.99Sale price $123.99 Regular priceUnit price Case of 6 $20.67/filter -
MERV 10Vendor:AAF Flanders14x24x1 NaturalAire Microparticle MERV 10
Regular price $89.99Sale price $89.99 Regular priceUnit price Case of 6 $15.00/filter -
MERV 10Vendor:AAF Flanders14x25x1 NaturalAire Microparticle MERV 10
Regular price $121.99Sale price $121.99 Regular priceUnit price Case of 12 $10.17/filter -
MERV 10Vendor:AAF Flanders20x22x1 NaturalAire Microparticle MERV 10
Regular price $261.99Sale price $261.99 Regular priceUnit price Case of 12 $21.83/filter -
MERV 10Vendor:AAF Flanders23-1/2x23-1/2x1 NaturalAire Microparticle MERV 10
Regular price $129.99Sale price $129.99 Regular priceUnit price Case of 6 $21.67/filter -
MERV 10Vendor:AAF Flanders
14x24x1 NaturalAire Microparticle MERV 10
Regular price $187.99Sale price $187.99 Regular priceUnit price Case of 12 $15.67/filter -
MERV 10Vendor:AAF Flanders12x18x1 NaturalAire Microparticle MERV 10
Regular price $118.99Sale price $118.99 Regular priceUnit price Case of 6 $19.83/filter -
MERV 10Vendor:AAF Flanders17-1/2x23-1/2x1 NaturalAire Microparticle MERV 10
Regular price $124.99Sale price $124.99 Regular priceUnit price Case of 6 $20.83/filter -
MERV 10Vendor:AAF Flanders21x22x1 NaturalAire Microparticle MERV 10
Regular price $120.99Sale price $120.99 Regular priceUnit price Case of 6 $20.17/filter -
Vendor:AAF Flanders21x22x1 NaturalAire Healthy Ultra MERV 13
Regular price $332.99Sale price $332.99 Regular priceUnit price Case of 12 $27.75/filter -
Vendor:AAF Flanders29-1/2x19-1/2x1 NaturalAire Standard MERV 8
Regular price $283.99Sale price $283.99 Regular priceUnit price Case of 12 $23.67/filter -
MERV 10Vendor:AAF Flanders12x18x1 NaturalAire Microparticle MERV 10
Regular price $233.99Sale price $233.99 Regular priceUnit price Case of 12 $19.50/filter -
MERV 8Vendor:AAF Flanders14x25x1 NaturalAire Standard MERV 8
Regular price $105.99Sale price $105.99 Regular priceUnit price Case of 12 $8.83/filter -
MERV 10Vendor:AAF Flanders14x18x1 NaturalAire Microparticle MERV 10
Regular price $127.99Sale price $127.99 Regular priceUnit price Case of 6 $21.33/filter -
MERV 13Vendor:AAF Flanders17-1/2x23-1/2x1 NaturalAire Healthy Ultra MERV 13
Regular price $201.99Sale price $201.99 Regular priceUnit price Case of 12 $16.83/filter
