Bio Ceramic Ball Water Treatment(Ceramic Filter).high quality Bio Ceramic Ball Water Treatment.sand filter for water treatment. Bio Ceramic Ball Water Treatment(Ceramic Filter) are made ... ± Na2OThe balanceContent %50~7015~250.5~10151538≤ 2 Technical IndexesItemIndexAppearanceRough ball; porous, red & brownParticle Size, mm0.5 30Apparent density, g/cm31. ... , Φ8~9, Φ9~10, Φ10~12, Φ13~15, Φ16~20, Φ21~60.