Pad Refills (Pack of 6 Pads) - 12" x 24" x 1" Quantity:Default The "Practical Pleat" media is

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

This is designed to fit into 1" Return Air Grilles

Either way

We can make custom air filters in heights and widths ranking from 6 inches to 36 7/8 inches with increments in 8ths of an inch

You may know them as washable air or even permanent air filters

Pad Refills (Pack of 6 Pads) - 12" x 24" x 1" Quantity:Default The "Practical Pleat" media isPACK 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.