Practical Pleated Air Filter (2-Pack) - 14" x 30" x 5" Quantity:Default these can be purchased in

these can be purchased in any conceivable size

with each stage capturing progressively smaller particles inside the filter

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

28X Increased Efficiency

Practical Pleated Air Filter (2-Pack) - 14" x 30" x 5" Quantity:Default these can be purchased inYes, 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