Search
Need a different depth?
Same size, deeper filter
Below is 21x21 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.
-
MERV 13Vendor:AAF Flanders20x24x1 NaturalAire Healthy Ultra MERV 13
Regular price $204.99Sale price $204.99 Regular priceUnit price Case of 12 $17.08/filter -
MERV 8Up to $17 offVendor:AAF FlandersWAREHOUSE DEAL 16x20x1 NaturalAire Standard MERV 8
Only 1 leftRegular price $79.99Sale price $79.99 Regular priceUnit price Case of 12 $6.67/filter$96.99 -
Vendor:AAF Flanders16x16x1 NaturalAire Healthy Ultra MERV 13
Regular price $275.99Sale price $275.99 Regular priceUnit price Case of 12 $23.00/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 -
MERV 13Vendor:AAF Flanders17-1/2x23-1/2x1 NaturalAire Healthy Ultra MERV 13
Regular price $201.99Sale price $201.99 Regular priceUnit price Case of 12 $16.83/filter -
MERV 13Vendor:AAF Flanders18x20x1 NaturalAire Healthy Ultra MERV 13
Regular price $193.99Sale price $193.99 Regular priceUnit price Case of 12 $16.17/filter -
MERV 13Vendor:AAF Flanders24x24x1 NaturalAire Healthy Ultra MERV 13
Regular price $261.99Sale price $261.99 Regular priceUnit price Case of 12 $21.83/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 10Vendor:AAF Flanders14x20x1 NaturalAire Microparticle MERV 10
Regular price $89.99Sale price $89.99 Regular priceUnit price Case of 6 $15.00/filter -
MERV 13Vendor:AAF Flanders18x24x1 NaturalAire Healthy Ultra MERV 13
Regular price $243.99Sale price $243.99 Regular priceUnit price Case of 12 $20.33/filter -
Vendor:AAF Flanders15x20x1 NaturalAire Healthy Ultra MERV 13
Regular price $281.99Sale price $281.99 Regular priceUnit price Case of 12 $23.50/filter -
MERV 10Vendor:AAF Flanders20x25x1 NaturalAire Microparticle MERV 10
Regular price $77.99Sale price $77.99 Regular priceUnit price Case of 6 $13.00/filter -
Vendor:AAF Flanders22x22x1 NaturalAire Healthy Ultra MERV 13
Regular price $213.99Sale price $213.99 Regular priceUnit price Case of 12 $17.83/filter -
MERV 10Vendor:AAF Flanders10x20x1 NaturalAire Microparticle MERV 10
Regular price $71.99Sale price $71.99 Regular priceUnit price Case of 6 $12.00/filter -
MERV 13Vendor:AAF Flanders20x25x1 NaturalAire Healthy Ultra MERV 13
Regular price $191.99Sale price $191.99 Regular priceUnit price Case of 12 $16.00/filter -
MERV 8Vendor:AAF Flanders15x20x1 NaturalAire Standard MERV 8
Regular price $96.99Sale price $96.99 Regular priceUnit price Case of 12 $8.08/filter
