It is made of plastic and molded into two semi-circular fish net shaped spheres. Place plastic braided wire or small sponge pieces. In the biochemical treatment of sewage, it has a fully three-dimensional structure, a large specific surface area, can be directly discharged without fixation, is easy to form a film, and does not clog. All plastic structural unit fillers have A/O, A2/O hydrolysis aerobic functions, minimal residual sludge, and long service life.

Note: 1000 balls per cubic meter for a diameter of 100 balls and 2000 balls per cubic meter for a diameter of 80 balls