Practical Pleated Air Filter (2-Pack) - 12 3/4" x 33 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

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This is a 5" MERV 10 HIGH PERFORMANCE AIR FILTER

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

Includes one Frame and PACK of 6 pads

from the air stream

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

some just refer to them as electrostatic filters

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

and the greater the pressure drop it creates

Available in packs of 4