Practical Pleated Air Filter (2-Pack) - 17 5/8" x 35" x 5" Quantity:Default This is designed to fit

This is designed to fit into 1" Return Air Grilles

offers the quickest installation on the Planet

from the air stream

the A+2000 uses stage loading

Filtering inserts are shipped in an easily stored packet

Practical Pleated Air Filter (2-Pack) - 17 5/8" x 35" x 5" Quantity:Default This is designed to fitYes, we even have the odd sizes! The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters. In general, the more efficient a filter is at removing particles, the greater it's resistance to airflow, and the greater the pressure drop it creates. One way to overcome this problem is to increase the surface area of the filter media. The "Practical Pleat" contains over 500% greater surface