Pad Refills (Pack of 6 Pads) - 23 1/4" x 23 1/4" x 3/4" Quantity:Default built to last a lifetime

built to last a lifetime

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

these can be purchased in any conceivable size

The "Practical Pleat" contains over 500% greater surface area than a MERV 10 one-inch pleat

than standard fiberglass filters purchased at retail outlets

Pad Refills (Pack of 6 Pads) - 23 1/4" x 23 1/4" x 3/4" Quantity:Default built to last a lifetimePACK 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.