Comet fiber filter is mixed fiber filter's wastefilter feature and granule's anti-washfeature,end up in his new filter materal. themost important feature is asymmetrical anddivisionalstructure,Achieve three maioroharacteristics of hioh filtralion rate, hiah precision filtration, and arae capacily of contaminanabsorption. Accurate for filter is above 5 MC, filter bed capacity reach to 15-35 ka/m . compared totraditional sand filter, the volume reduces 35-50% and anti-wash water consuming reduices 50-70%