Practical Pleated Air Filter (2-Pack) - 17 1/4" x 29 1/4" x 5" Quantity:Default The "Practical Pleat" media is

The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters

some just refer to them as electrostatic 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

This is designed to fit into 1" Return Air Grilles

oxidation and deterioration

Practical Pleated Air Filter (2-Pack) - 17 1/4" x 29 1/4" x 5" Quantity:Default The "Practical Pleat" media isYes, 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