Pad Refills (Pack of 6 Pads) - 16" x 16" x 1" Quantity:Default They are easy to install

They are easy to install with custom air filters made to the sizes that you specify

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

the more efficient a filter is at removing particles

Instead of face loading (particles captured on the outer surface of the filter)

with each stage capturing progressively smaller particles inside the filter

Pad Refills (Pack of 6 Pads) - 16" x 16" x 1" Quantity:Default They are easy to installPACK of 6 pads for Pad and Frame Air Filters 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 outlets. Filtering inserts are shipped in an easily stored packet.