Merv 13 Pleated Air Filter - 22" x 22" x 1" Quantity:12-pack And there are no metal

And there are no metal parts that could lead to corrosion or oxidation within the filter

This design enables A+2000 custom air filters to maintain performance over the years

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

To order washable electrostatic custom air filters you just need to know the size of the current air filter

oxidation and deterioration

Merv 13 Pleated Air Filter - 22" x 22" x 1" Quantity:12-pack And there are no metalAny Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop, and long service life which reduces HVAC equipment maintenance and energy costs. 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.