Practical Pleated Air Filter (2-Pack) - 20" x 36" x 5" Quantity:Default A higher MERV rating means

A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter

28X Increased Efficiency

such as dust

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

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

Practical Pleated Air Filter (2-Pack) - 20" x 36" x 5" Quantity:Default A higher MERV rating meansYes, 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