Harden Felt Filter Cylinders

Cylindrical filters are made of resin treated polyester felt and are cured in an oven. The oven curing helps to provide rigidity, making these filters self-supporting. There is no need for support screen or springs with this type of filter. They remain solid on their own. These can be made in a variety of micron ratings.  However, the most common pore size is 40 microns for this particular type of oil coalescing filter.

As a specialty filter manufacturer, we can provide a variety of sizes and diameters to meet your filtration requirements.

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Applications for filter cylinders include:


  • Breather filters on military equipment

  • Air filters prior to air compressors

  • Oil coalescing filter

Filter cylinder photo gallery: