Practical Pleated Air Filter (2-Pack) - 21" x 28" x 5"Yes, 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

these can be purchased in any conceivable size

To find the size the old unit should have sizing information printed on it

built to last a lifetime

than standard fiberglass filters purchased at retail outlets

In general

with each stage capturing progressively smaller particles inside the filter

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

28X Increased Efficiency

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

You may know them as washable air or even permanent air filters

the A+2000 uses stage loading

Eliminates Filter Bypass