Pad Refills (Pack of 6 Pads) - 19 3/4" x 19 3/4" 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

The "Practical Pleat" media is up to 28 times more effective at capturing particles than standard fiberglass panel filters

To find the size the old unit should have sizing information printed on it

The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts

Then Order custom air filters from us today

Pad Refills (Pack of 6 Pads) - 19 3/4" x 19 3/4" 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.