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Need a different depth?
Same size, deeper filter
Below is 12x18 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 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 Flanders12x18x1 NaturalAire Microparticle MERV 10
Regular price $233.99Sale price $233.99 Regular priceUnit price Case of 12 $19.50/filter -
MERV 8Vendor:AAF Flanders12x18x1 NaturalAire Odor Eliminator with Baking Soda MERV 8
Regular price $57.99Sale price $57.99 Regular priceUnit price Case of 4 $14.50/filter -
Vendor:AAF Flanders12x18x1 NaturalAire Standard MERV 8
Regular price $132.99Sale price $132.99 Regular priceUnit price Case of 12 $11.08/filter -
Vendor:AAF Flanders12x18x1 NaturalAire Healthy Ultra MERV 13
Regular price $277.99Sale price $277.99 Regular priceUnit price Case of 12 $23.17/filter -
MERV 13Vendor:AAF Flanders18x18x1 NaturalAire Healthy Ultra MERV 13
Regular price $195.99Sale price $195.99 Regular priceUnit price Case of 12 $16.33/filter -
MERV 8Vendor:AAF Flanders18x18x1 NaturalAire Standard MERV 8
Regular price $103.99Sale price $103.99 Regular priceUnit price Case of 12 $8.67/filter -
MERV 10Vendor:AAF Flanders18x18x1 NaturalAire Microparticle MERV 10
Regular price $261.99Sale price $261.99 Regular priceUnit price Case of 12 $21.83/filter -
MERV 8Vendor:AAF Flanders12x12x1 NaturalAire Standard MERV 8
Regular price $97.99Sale price $97.99 Regular priceUnit price Case of 12 $8.17/filter -
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 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 10Vendor:AAF Flanders12x12x1 NaturalAire Microparticle MERV 10
Regular price $88.99Sale price $88.99 Regular priceUnit price Case of 6 $14.83/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 8Vendor:AAF Flanders18x24x1 NaturalAire Standard MERV 8
Regular price $111.99Sale price $111.99 Regular priceUnit price Case of 12 $9.33/filter -
MERV 10Vendor:AAF Flanders18x18x1 NaturalAire Microparticle MERV 10
Regular price $114.99Sale price $114.99 Regular priceUnit price Case of 6 $19.17/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
