Pad and Frame Air Filter (1 Frame and 6 Pads) - 36" x 36" x 1" Quantity:Default the A+2000 uses stage loading

the A+2000 uses stage loading

The A+2000 line is easy to maintain with no need to buy oils or adhesives to enhance effectiveness

It is designed to inhibit growth of bacteria

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

the greater it's resistance to airflow

Pad and Frame Air Filter (1 Frame and 6 Pads) - 36" x 36" x 1" Quantity:Default the A+2000 uses stage loadingIncludes 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