Practical Pleated Air Filter (2-Pack) - 20 1/8" x 20 1/8" 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

built to last a lifetime

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

than standard fiberglass filters purchased at retail outlets

with each stage capturing progressively smaller particles inside the filter

the greater it's resistance to airflow

This is designed to fit into 1" Return Air Grilles

and long service life which reduces HVAC equipment maintenance and energy costs

Grease Baffle Uses:

Eliminates Filter Bypass

Kills bacteria

precisely designed to prevent flame from penetrating the filters and as the grease laden air passes through the filter is collects the grease