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Need a different depth?
Same size, deeper filter
Below is 11-1/2x11-1/2 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 8Up to $27.11 offVendor:AAF FlandersWAREHOUSE DEAL 11-1/2x11-1/2x1 NaturalAire Standard MERV 8
Only 1 leftRegular price $118.88Sale price $118.88 Regular priceUnit price Case of 12 $9.91/filter$145.99 -
MERV 8Vendor:AAF Flanders11-1/2x11-1/2x1 NaturalAire Standard MERV 8
Regular price $159.99Sale price $159.99 Regular priceUnit price Case of 12 $13.33/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 Flanders17-1/2x29-1/2x1 NaturalAire Standard MERV 8
Regular price $170.99Sale price $170.99 Regular priceUnit price Case of 12 $14.25/filter -
MERV 8Vendor:AAF Flanders21-1/2x23-1/2x1 NaturalAire Standard MERV 8
Regular price $183.99Sale price $183.99 Regular priceUnit price Case of 12 $15.33/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 -
Vendor:AAF Flanders17-1/2x23-1/2x1 NaturalAire Standard MERV 8
Regular price $156.99Sale price $156.99 Regular priceUnit price Case of 12 $13.08/filter -
MERV 8Vendor:AAF Flanders17-1/2x17-1/2x1 NaturalAire Standard MERV 8
Regular price $128.99Sale price $128.99 Regular priceUnit price Case of 12 $10.75/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 11Vendor:AAF Flanders20x25x4-1/2 NaturalAire Optimum Allergen MERV 11
Regular price $145.99Sale price $145.99 Regular priceUnit price Case of 2 $73.00/filter -
MERV 11Vendor:AAF Flanders20x25x5 NaturalAire Optimum Allergen MERV 11
Regular price $145.99Sale price $145.99 Regular priceUnit price Case of 2 $73.00/filter -
MERV 10Vendor:AAF Flanders17-1/2x23-1/2x1 NaturalAire Microparticle MERV 10
Regular price $124.99Sale price $124.99 Regular priceUnit price Case of 6 $20.83/filter -
MERV 8Vendor:AAF Flanders23-1/2x21-1/2x1 NaturalAire Standard MERV 8
Regular price $200.99Sale price $200.99 Regular priceUnit price Case of 12 $16.75/filter -
Vendor:AAF Flanders17-1/2x26-1/2x1 NaturalAire Standard MERV 8
Regular price $270.99Sale price $270.99 Regular priceUnit price Case of 12 $22.58/filter -
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 -
Vendor:AAF Flanders19x21-1/2x1 NaturalAire Standard MERV 8
Regular price $268.99Sale price $268.99 Regular priceUnit price Case of 12 $22.42/filter
