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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 10Vendor:AAF Flanders24x36x1 NaturalAire Microparticle MERV 10
Regular price $244.99Sale price $244.99 Regular priceUnit price Case of 6 $40.83/filter -
MERV 8Vendor:AAF Flanders16x25x5 NaturalAire Choice Allergen MERV 8
Regular price $194.99Sale price $194.99 Regular priceUnit price Case of 2 $97.50/filter -
Vendor:AAF Flanders24x36x1 NaturalAire Healthy Ultra MERV 13
Regular price $409.99Sale price $409.99 Regular priceUnit price Case of 12 $34.17/filter -
MERV 8Vendor:AAF Flanders10x20x1 NaturalAire Standard MERV 8
Regular price $98.99Sale price $98.99 Regular priceUnit price Case of 12 $8.25/filter -
MERV 1-4Vendor:AAF Flanders15x24x1/4 NaturalAire Kwik Kut Foam Filter KK500
Regular price $120.99Sale price $120.99 Regular priceUnit price Case of 24 $5.04/filter -
MERV 8Up to $20.11 offContact SupportVendor:AAF FlandersWAREHOUSE DEAL 20x20x5 NaturalAire Choice Allergen MERV 8
Regular price $89.88Sale price $89.88 Regular priceUnit price Case of 2 $44.94/filter$109.99 -
MERV 8Vendor:AAF Flanders14x24x1 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 8Vendor:AAF Flanders19x20x4 NaturalAire Choice Allergen MERV 8
Regular price $136.99Sale price $136.99 Regular priceUnit price Case of 2 $68.50/filter -
MERV 10Vendor:AAF Flanders16x16x1 NaturalAire Microparticle MERV 10
Regular price $240.99Sale price $240.99 Regular priceUnit price Case of 12 $20.08/filter -
MERV 10Up to $28.11 offVendor:AAF FlandersWAREHOUSE DEAL 24x24x1 NaturalAire Microparticle MERV 10
Only 1 leftRegular price $59.88Sale price $59.88 Regular priceUnit price Case of 6 $9.98/filter$87.99 -
MERV 8Vendor:AAF Flanders20x22-1/4x1 NaturalAire Standard MERV 8
Regular price $173.99Sale price $173.99 Regular priceUnit price Case of 12 $14.50/filter -
MERV 13Vendor:AAF Flanders16x20x1 NaturalAire Healthy Ultra MERV 13
Regular price $224.99Sale price $224.99 Regular priceUnit price Case of 12 $18.75/filter -
Vendor:AAF Flanders8x30x1 NaturalAire Standard MERV 8
Regular price $131.99Sale price $131.99 Regular priceUnit price Case of 12 $11.00/filter -
MERV 10Vendor:AAF Flanders24x30x1 NaturalAire Microparticle MERV 10
Regular price $275.99Sale price $275.99 Regular priceUnit price Case of 12 $23.00/filter -
MERV 13Vendor:AAF Flanders16x25x1 NaturalAire Healthy Ultra MERV 13
Regular price $181.99Sale price $181.99 Regular priceUnit price Case of 12 $15.17/filter -
MERV 13Vendor:AAF FlandersCustom Size NaturalAire Healthy Ultra MERV 13 Air Filter
Regular price $248.99Sale price $248.99 Regular price
