Fiber ball filter is made of dacron, by taking the water pressure, fiber stings tangle together, get touch with waste water to absolve the suspended matters and organics to reach the goal, widely used in waste water processing industry. Features, light weighted, small density, soft and with physical and chemical stability, durable. Floating with water, make the stuffing changeable and won’t be blocked by bio film. Large specific surface area, high activity, good processing effect.