We have been producing water purifying filters for 29 years and selling them in more than 60 countries

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We have been producing water purifying filters for 29 years and selling them in more than 60 countries

Filter-Ag® filter media 28.3 L

Article : FLAG
  • Efficiently purifies water from scale, rust, silt, etc.  ?
  • Low regeneration water consumption  ?
  • Long service life  ?
VAT NOT included


Filter-Ag Filter - Ag is a filter media based on non-aqueous silica dioxide. It is designed to reduce contents of suspended particles in water.

Key advantages

- Improved dirt holding capacity

- Saves your money, due to high capacity and low regeneration costs

- Eco-friendly, because it's made of chemically inert material


Used in water purification pressure and gravity filters. Thanks to its density, Filter-Ag can also be applied in multimedia filters, incl. sediment filters Ecosoft FP.


Filter-Ag can remove particles having a size of 20-40 microns (sand, silt, etc.). The structure of the granules is heterogeneous, which contributes to a more active retention of particles, including iron in low concentrations.

Main features

  • low pressure loss at the Filter-Ag bed compared to other filter media

  • lightweight reduces water consumption during backwash

  • high efficiency results in lower expenses related to the equipment

  • high sediments reduction capacity leads to longer service life of the media

  • replacement of sand with Filter-Ag increases filter capacity by 100% or more

The Filter-Ag granules have fractured edges and non-uniform surface which provide large filtration surface. 

In the filtering process water enters the filter vessel, passes through a layer of media, which detains mechanical impurities (sand, rust, silt, etc.).

When contaminants "clog" the free space of the material, the pressure drop in the filter increases and the productivity drops. In this case, the Filter-Ag is flushed and back flushed with a reverse flow of water. After it, the filter is ready to purify the water again.

Technical data




up to light gray to white

Bulk density, kg/dm3


Real density, kg/dm3


Effective bead size, mm


Uniformity coefficient


Particle size, mm


The operating parameters



Max feed eater temperature, °C 


Media layer high, mm


Free space in the filter, at least

50% of media

Linear filtration rate, m/h


Linear flushing rate, m/h


Expansion layer backwash

20–40% of media