Pad Refills (Pack of 6 Pads) - 6" x 6" x 1" Quantity:Default And there are no metal

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

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

This is designed to fit into 1" Return Air Grilles

the A+2000 uses no foam that may clog

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

Pad Refills (Pack of 6 Pads) - 6" x 6" x 1" Quantity:Default And there are no metalPACK 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.