Practical Pleated Air Filter (2-Pack) - 24 3/4" x 31 3/4" 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

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

than standard fiberglass filters purchased at retail outlets

This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

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

Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop

the greater it's resistance to airflow

if not you can measure it or check the HVAC unit and the owner‰۪s manual

from the air stream

Eliminates Filter Bypass

Filtering inserts are shipped in an easily stored packet

One way to overcome this problem is to increase the surface area of the filter media

Unlike some permanent custom air filters