Pad and Frame Air Filter (1 Frame and 6 Pads) - 17 1/2" x 17 1/2" x 1" Quantity:Default They are easy to install

They are easy to install with custom air filters made to the sizes that you specify

Any Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop

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

We look forward to delivering our American-made

we even have the odd sizes

Pad and Frame Air Filter (1 Frame and 6 Pads) - 17 1/2" x 17 1/2" x 1" Quantity:Default They are easy to installIncludes one Frame and PACK of 6 pads The Pad and Frame Air Filter involves a permanent frame and replaceable filtration pad inserts. The permanent frame is constructed of space age plastics that are resistant to corrosion, oxidation and deterioration. 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