Filter Bag Materials


Operating on the principle of depth filtration, needled felt filter bags are effective at removing both solid and gelatinous particles. 100% pure fibers are needled to create a tortuous path in a three-dimensional medium. Materials available are polypropylene, polyester, nylon, PTFE and Nomex.

Felt Advantages Include:

  • High dirt holding capacity
  • Capability to remove gelatinous particles
  • Cost-effective filtration due to long service life


Also operating on the principle of surface filtration, monofilament mesh filter bags are manufactured from mesh materials in which each strand is a single filament.The non-deformable filaments are woven in a specific, consistent pattern and fusion welded for extra strength. Monofilament meshes are structurally very strong and are available in nylon (Standard).

Monofilament Mesh Advantages Include:

  • Absolute rated medium
  • High mechanical strength


Manufactured from a combination of polypropylene felt, meltblown polypropylene and a protective polyester mesh cover, the oil absorption filter bag series is designed to remove oils and hydrocarbon liquids from aqueous fluids, while providing the benefits of particle retention.

Oil Adsorption Advantages Include:

  • Unparalleled absorption characteristics for oils and hydrocarbons
  • Higher flow rates
  • Superior levels of absorption efficiency via controlled flow velocity


High efficiency ACCUGAF and PROGAF series filter bags are available in polypropylene meltblown materials. These filter bags are manufactured with welded seams and utilize the patented bypass-proof SENTINEL® seal ring in order to maintain the high efficiency of the meltblown material in the bag configuration. ACCUGAF and PROGAF series bags offer high efficiency filter media with graded density profile to maximize dirt holding capacity and prolong service life. Both bags are manufactured from materials that are compliant with FDA standards for food, beverage and pharmaceutical applications.