Practical Pleated Air Filter (2-Pack) - 21" x 26" 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

PACK of 6 pads for Pad and Frame Air Filters

the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

Then simply add that information to our easy to use order form above

In general

the greater it's resistance to airflow

oxidation and deterioration

The A+2000 line is easy to maintain with no need to buy oils or adhesives to enhance effectiveness

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

Includes one Frame and PACK of 6 pads

They are easy to install with custom air filters made to the sizes that you specify

Available in packs of 4