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21.5x23.25x1 Air Filters

MERV 8 (Standard)

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21.5x23.25x1 Air Filter Description

Actual Size: 21.5x23.25x1"
Model: AFB21.5x23.25x1M8A
Available In MERV Rating: 6 , 8 , 11 , 13
Made in the USA
Ships in 24 hours

MERV Rating Information

MERV 6 (Basic)

Actual: 21.5x23.25x1"
Model: AFB21.5x23.25x1M6A
More Info

6 for 15.99 each

5% discount

•Pollen•Dust Mites•Mold•Basic Residential Use

MERV 8 (Standard)

Actual: 21.5x23.25x1"
Model: AFB21.5x23.25x1M8A
More Info

6 for 18.00 each

5% discount

•Pollen•Dust Mites•Mold•Larger dust particles, like pudding mix•Standard residential / commercial use

MERV 11 (Superior)

Actual: 21.5x23.25x1"
Model: AFB21.5x23.25x1M11A
More Info

6 for 19.99 each

5% discount

•Pollen•Dust Mites•Mold•Auto Emissions / Large Particles like Milled Flower•Superior Commercial and Residential

MERV 13 (Best)

Actual: 21.5x23.25x1"
Model: AFB21.5x23.25x1M13A
More Info

6 for 21.99 each

5% discount

•Pollen•Dust Mites•Mold•All Bacteria•Proplet Nuceli (sneeze)•Smoking Lounges•Best of breed, hospital grade filter

21.5x23.25x1 Air Filter Reviews

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Build a Custom Size

Simply measure the length and width of your filter with a tape measure and choose the closest size (to 1/8”) in the drop down menu. 1/8” tolerance is standard and should not cause a problem in any standard filter application.

Please note that the ‘actual’ filter size, ie the size that your tape measure shows, should be used when creating a filter with this tool, not a nominal filter size. Note that the depths of each filter are standard, as shown to the right.

Simply measure the length and width of your filter with a tape measure and choose the closest size (to 1/8”) in the drop down menu. Please note that the filter depth is standard.