Practical Pleated Air Filter (2-Pack) - 21" x 21" x 5" Quantity:Default This design enables A+2000 custom

This design enables A+2000 custom air filters to maintain performance over the years

We can make custom air filters in heights and widths ranking from 6 inches to 36 7/8 inches with increments in 8ths of an inch

The permanent frame is constructed of space-age plastics that are resistant to corrosion

And there are no metal parts that could lead to corrosion or oxidation within the filter

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Practical Pleated Air Filter (2-Pack) - 21" x 21" x 5" Quantity:Default This design enables A+2000 customYes, we even have the odd sizes! The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters. In general, the more efficient a filter is at removing particles, the greater it's resistance to airflow, and the greater the pressure drop it creates. One way to overcome this problem is to increase the surface area of the filter media. The "Practical Pleat" contains over 500% greater surface