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Need a different depth?
Same size, deeper filter
Below is 18x18 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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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 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 -
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 Flanders18x24x1 NaturalAire Standard MERV 8
Regular price $111.99Sale price $111.99 Regular priceUnit price Case of 12 $9.33/filter -
MERV 8Vendor:AAF Flanders18x20x1 NaturalAire Standard MERV 8
Regular price $105.99Sale price $105.99 Regular priceUnit price Case of 12 $8.83/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 Flanders18x30x1 NaturalAire Standard MERV 8
Regular price $154.99Sale price $154.99 Regular priceUnit price Case of 12 $12.92/filter -
MERV 1-4Vendor:AAF Flanders20x30x1 NaturalAire Cut-to-Fit Natural Fiber Washable Filter SM1006
Regular price $78.99Sale price $78.99 Regular priceUnit price Case of 6 $13.17/filter -
MERV 10Vendor:AAF Flanders18x20x1 NaturalAire Microparticle MERV 10
Regular price $93.99Sale price $93.99 Regular priceUnit price Case of 6 $15.67/filter -
MERV 10Vendor:AAF Flanders16x25x1 NaturalAire Microparticle MERV 10
Regular price $143.99Sale price $143.99 Regular priceUnit price Case of 12 $12.00/filter -
MERV 10Vendor:AAF Flanders18x30x1 NaturalAire Microparticle MERV 10
Regular price $122.99Sale price $122.99 Regular priceUnit price Case of 6 $20.50/filter -
MERV 8Vendor:AAF Flanders16x25x1 NaturalAire Standard MERV 8
Regular price $105.99Sale price $105.99 Regular priceUnit price Case of 12 $8.83/filter -
MERV 8Vendor:AAF Flanders20x20x1 NaturalAire Standard MERV 8
Regular price $104.99Sale price $104.99 Regular priceUnit price Case of 12 $8.75/filter -
MERV 10Vendor:AAF Flanders18x20x1 NaturalAire Microparticle MERV 10
Regular price $204.99Sale price $204.99 Regular priceUnit price Case of 12 $17.08/filter -
MERV 8Vendor:AAF Flanders14x14x1 NaturalAire Standard MERV 8
Regular price $95.99Sale price $95.99 Regular priceUnit price Case of 12 $8.00/filter -
MERV 13Vendor:AAF Flanders20x30x1 NaturalAire Healthy Ultra MERV 13
Regular price $228.99Sale price $228.99 Regular priceUnit price Case of 12 $19.08/filter
