Pad and Frame Air Filter (1 Frame and 6 Pads) - 17 1/2" x 17 1/2" x 1" Quantity:Default The "Practical Pleat" contains over

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

the greater it's resistance to airflow

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

One way to overcome this problem is to increase the surface area of the filter media

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

Pad and Frame Air Filter (1 Frame and 6 Pads) - 17 1/2" x 17 1/2" x 1" Quantity:Default The "Practical Pleat" contains overIncludes 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