Synthetic filter wadding, made out of phenol-free material for ultra-fine mechanical filtering of the water. It is placed in the filter as last layer with a max. thickness of about 2-3 cm. EHFISYNTH removes tiny particles of dirt out of the water circulation. If medicaments are added to the water, filtering must be done through a newly-inserted EHFISYNTH layer. For use in fresh and marine-water.Do you have questions about this article ?