They are mainly manufactured in straight form in thicknesses usually 10 - 20 - 24 - 48 mm but also in Z-line 48 mm thick.

They are very much used as a first stage of filtration to retain the larger particles of dust, moisture, grease etc.

They allow the passage of a large amount of air and have a very low initial pressure drop.

They are of robust construction, withstand high temperatures and have many applications in industry, in restaurant hoppers, in deodorizing systems, and in special applications.

In addition to the standard types, they are manufactured in any dimension required.