Pad Refills (Pack of 6 Pads) - 21" x 22" x 3/4" Quantity:Default They are easy to clean

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

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

Either way

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

Pad Refills (Pack of 6 Pads) - 21" x 22" x 3/4" Quantity:Default They are easy to cleanPACK 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.