Practical Pleated Air Filter (2-Pack) - 22 1/2" x 23 1/2" x 5" Quantity:Default In general

In general

PACK of 6 pads for Pad and Frame Air Filters

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

we even have the odd sizes

Practical Pleated Air Filter (2-Pack) - 22 1/2" x 23 1/2" x 5" Quantity:Default In generalYes, 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