37mm and 25mm PTFE filters

Filters for sample retention of particles with different diameters and pore sizes depending on the method to be evaluated for occupational health and workplace exposure.
Environmental Express Zefon

Product Details


  • Fully assembled, preloaded and ready to use
  • Leak-free construction eliminates sample loss
  • Configurations available to meet most NIOSH, OSHA or EPA standards that require filter cassettes
  • A wide selection of filter membrane types including MCE, PVC, PTFE, Glass Fiber and Polycarbonate
  • Available with Zefon Solu-Sert™ or Gravi-Sert™ filter capsules installed
  • Containers are available in a 2-Piece closed surface sampling configuration, or 3-Piece and 4-Piece configurations (37 mm only) for open surface sampling.
  • Sterile models are available and are suitable for a variety of applications such as mold collection, microbiological analysis, water supply testing and beverage monitoring.
  • Ultra Pure PTFE models are available for sampling pharmaceutical compounds

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Frequently Asked Questions

Can we find the PT HAS product on the e-catalogue (LKPP) ?

Absolutely, almost all PT HAS products can be found in the e-catalogue.

How about the warranty for products from PT HAS ?

PT HAS Supply’s products include a 1-year official warranty for damage caused by manufactured defects.

Has the PT HAS product been calibrated? What if the calibration period is over?

Products from PT HAS have been calibrated and are ready to use. For further calibration, PT HAS already has a calibration lab that is ISO 17025 accredited and is ready to help customers who need recalibration.

What if the product has a problem and needs repair?

PT HAS has a local service center (in Jakarta), and our technicians are trained in the manufacture of the products we are agents for. For repairs and troubleshooting, we try to do it locally. and we make sure that the spare parts we supply are official spare parts from manufacturers.

Do we get training on using the tool after making a purchase at PT Has?

For all product purchases at PT HAS, usage training is included and is unlimited.

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