Pad Refills (Pack of 6 Pads) - 19 1/4" x 19 1/4" x 1" Quantity:Default Instead of face loading (particles

Instead of face loading (particles captured on the outer surface of 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

In general

Can be ordered in packages of 2 each only

Pad Refills (Pack of 6 Pads) - 19 1/4" x 19 1/4" x 1" Quantity:Default Instead of face loading (particlesPACK 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.