Merv 11 Pleated Air Filter - 19 3/4" x 22 3/4" 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

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

We can make custom air filters in heights and widths ranking from 6 inches to 36 7/8 inches with increments in 8ths of an inch

You never have to hassle with disposable filters that will end up in a landfill again

Keeps HVAC system cleaner and more efficient

Merv 11 Pleated Air Filter - 19 3/4" x 22 3/4" 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.