Pad and Frame Air Filter (1 Frame and 6 Pads) - 16 1/8" x 21 3/8" x 3/4" Quantity:Default And there are no metal

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

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

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

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

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

Pad and Frame Air Filter (1 Frame and 6 Pads) - 16 1/8" x 21 3/8" x 3/4" Quantity:Default And there are no metalIncludes one Frame and PACK of 6 pads The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts. The permanent frame is constructed of space age plastics that are resistant to corrosion, oxidation and deterioration. Filtering inserts are anti microbial and are more efficient in capturing particles, such as dust, ragweed, pollen, etc., from the air stream, than standard fiberglass filters purchased at retail