Filters of fiberglass 37 mm and 25 mm

Grade 934-AH® is the standard for suspended solids content sampling and related measurements (Standard Method 2540D and EPA Method 160.2).

Made from binder-free borosilicate glass microfibers that allow use up to 550°C while featuring fine porosity, fast flow rates and 1.5μm particle retention. Glass Fiber Filter, 934-AH® in sizes from 25mm sheet to 8″ x 10″.

Fine porosity, fast flow rate, with 1.5µm particle retention.

This material is the standard for suspended solids content and related measurements (Standard Method 2540D and EPA Method 160.2). Also widely used in cell harvesting and RIA scintillation counting applications. Grade 934-AH® is a binderless borosilicate glass microfiber that allows use up to 550° C.
Environmental Express Zefon

Product Details


  • Clean the Polystyrene Housing
  • Available in 2 or 3 Piece Configuration
  • Already loaded, ready to use
  • Leak-Free Design

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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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