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Need a different depth?
Same size, deeper filter
Below is 18x24 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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MERV 8Vendor:AAF Flanders18x24x1 NaturalAire Standard MERV 8
Regular price $111.99Sale price $111.99 Regular priceUnit price Case of 12 $9.33/filter -
MERV 8Vendor:AAF Flanders18x24x1 NaturalAire Odor Eliminator with Baking Soda MERV 8
Regular price $66.99Sale price $66.99 Regular priceUnit price Case of 4 $16.75/filter -
MERV 10Vendor:AAF Flanders18x24x1 NaturalAire Microparticle MERV 10
Regular price $148.99Sale price $148.99 Regular priceUnit price Case of 12 $12.42/filter -
MERV 10Vendor:AAF Flanders
18x24x1 NaturalAire Microparticle MERV 10
Regular price $84.99Sale price $84.99 Regular priceUnit price Case of 6 $14.17/filter -
MERV 10Up to $18.11 offVendor:AAF FlandersWAREHOUSE DEAL 18x24x1 NaturalAire Microparticle MERV 10
Regular price $59.88Sale price $59.88 Regular priceUnit price Case of 6 $9.98/filter$77.99 -
MERV 13Vendor:AAF Flanders18x24x1 NaturalAire Healthy Ultra MERV 13
Regular price $243.99Sale price $243.99 Regular priceUnit price Case of 12 $20.33/filter -
MERV 13Up to $31.51 offVendor:AAF FlandersWAREHOUSE DEAL 18x24x1 NaturalAire Healthy Ultra MERV 13
Only 1 leftRegular price $97.99Sale price $97.99 Regular priceUnit price Case of 7 $14.00/filter$129.50 -
MERV 10Vendor:AAF FlandersNaturalAire Microparticle MERV 10
Regular price From $137.99Sale price From $137.99 Regular priceUnit price Case of 12 $11.50/filter -
MERV 13Vendor:AAF FlandersNaturalAire Healthy Ultra MERV 13
Regular price From $174.99Sale price From $174.99 Regular priceUnit price Case of 12 $14.58/filter -
MERV 8Vendor:AAF FlandersNaturalAire Standard MERV 8
Regular price From $95.99Sale price From $95.99 Regular priceUnit price Case of 12 $8.00/filter -
MERV 8Vendor:AAF Flanders14x24x1 NaturalAire Standard MERV 8
Regular price $96.99Sale price $96.99 Regular priceUnit price Case of 12 $8.08/filter -
MERV 1-4Vendor:AAF Flanders18x24x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter
Regular price $64.99Sale price $64.99 Regular priceUnit price Case of 12 $5.42/filter -
MERV 8Vendor:AAF FlandersCustom Size NaturalAire Standard MERV 8 Air Filter
Regular price $208.99Sale price $208.99 Regular price -
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 13Up to $34.13 offContact SupportVendor:AAF FlandersWAREHOUSE DEAL 18x18x1 NaturalAire Healthy Ultra MERV 13
Regular price $129.99Sale price $129.99 Regular priceUnit price Case of 11 $11.82/filter$164.12 -
MERV 10Vendor:AAF Flanders16x24x1 NaturalAire Microparticle MERV 10
Regular price $72.99Sale price $72.99 Regular priceUnit price Case of 6 $12.17/filter
