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Need a different depth?
Same size, deeper filter
Below is 25x25 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 Flanders16x25x4-1/2 NaturalAire Choice Allergen MERV 8
Regular price $104.99Sale price $104.99 Regular priceUnit price Case of 2 $52.50/filter -
MERV 10Vendor:AAF Flanders18x25x1 NaturalAire Microparticle MERV 10
Regular price $127.99Sale price $127.99 Regular priceUnit price Case of 6 $21.33/filter -
MERV 8Vendor:AAF FlandersCustom Size NaturalAire Standard MERV 8 Air Filter
Regular price $208.99Sale price $208.99 Regular price -
Vendor:AAF Flanders18x25x1 NaturalAire Standard MERV 8
Regular price $246.99Sale price $246.99 Regular priceUnit price Case of 12 $20.58/filter -
MERV 10Vendor:AAF Flanders18x25x1 NaturalAire Microparticle MERV 10
Regular price $260.99Sale price $260.99 Regular priceUnit price Case of 12 $21.75/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 -
MERV 8Vendor:AAF Flanders20x25x1 NaturalAire Odor Eliminator with Baking Soda MERV 8
Regular price $61.99Sale price $61.99 Regular priceUnit price Case of 4 $15.50/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 8Vendor:AAF Flanders16x25x1 NaturalAire Odor Eliminator with Baking Soda MERV 8
Regular price $62.99Sale price $62.99 Regular priceUnit price Case of 4 $15.75/filter -
MERV 8Up to $20.86 offContact SupportVendor:AAF FlandersWAREHOUSE DEAL 12x25x1 NaturalAire Standard MERV 8
Regular price $39.99Sale price $39.99 Regular priceUnit price Case of 5 $8.00/filter$60.85 -
MERV 8Contact SupportVendor:AAF Flanders20x25x6 NaturalAire Choice Allergen MERV 8
Regular price $190.99Sale price $190.99 Regular priceUnit price Case of 3 $63.66/filter -
MERV 8Vendor:AAF Flanders14x25x1 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 FlandersCustom Size NaturalAire Microparticle MERV 10 Air Filter
Regular price $228.99Sale price $228.99 Regular price -
MERV 8Vendor:AAF Flanders21-1/2x24x1 NaturalAire Standard MERV 8
Regular price $180.99Sale price $180.99 Regular priceUnit price Case of 12 $15.08/filter -
MERV 10Vendor:AAF Flanders10x10x1 NaturalAire Microparticle MERV 10
Regular price $116.99Sale price $116.99 Regular priceUnit price Case of 6 $19.50/filter -
Vendor:AAF Flanders29-1/2x23-1/2x1 NaturalAire Standard MERV 8
Regular price $306.99Sale price $306.99 Regular priceUnit price Case of 12 $25.58/filter
