Filtration Of Liquids & Gases From Coarse To Submicronic
Customized Filtration Solutions
Oil Purification Systems

Bag Construction

Felt Bags
– Filtration felt is a low cost disposable media with particle retention from 1 to 200 microns. It has depth filtration qualities and high solids loading capacity. Felt bags are available in Polyester, Polypropylene, and Nylon media. The felt are glazed or singed to minimize media migration.

Monofilament – Monofilament mesh is an extremely strong material with precise weaving to ensure consistent pore sizes. It is reusable in many applications. Nylon, Polyester and Polypropylene media are available, with micron ratings from 1-1200 microns.

Multifilament – Multifilament mesh is a low cost media with micron ratings from 100-1500 microns. It can be used in applications where the extra strength of a monofilament is not needed. Multifilament mesh is available in Nylon and Polyester.

**The above bags do not fit every filter housing available. If you are not sure which housing you have call with your bag requirements and we will recommend the correct bag for you


EFI filter bags are manufactured in a variety of styles and materials. Made of the highest quality media, our filter bags will give you the highest particle retention, largest solids-loading capacity and widest range of options. These bags are the ideal choice for your specific filtration requirement. With standard sizes to fit most housings, these bags are the perfect choice when quality is important. The filter bags are available in microns ratings from 1 to 1500.


  • Filter bags fit most major manufacturer’s housings
  • Available in felt media for high solids retention, monofilament mesh for precise pore sizes and reusable applications, and multifilament mesh for low cost, disposable applications
  • Filter bags are available with steel, stainless steel and plastic rings or a plastic flange with integral handles for positive sealing
  • When coupled with our EFI Bag Housings these bags offer the highest efficiencies available
  • Media’s include Polypropylene, Polyester, Nylon, Nomex for high temperatures, and Teflon for the widest range of compatibility in the industry
  • Bags are produced with a glazed finish to reduce media migration
  • Available with heavy duty fiber handles for easy removal
  • Sizes include #1, #2, #3, and #4 size bags
Felt Materials Micron Ratings



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Engineered Filtration, Inc.
P.O Box 1067
San Marcos, TX 78667 USA
Phone 512.827.3701 Fax: 512.777.4526


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