 
            The use of polyolefins and polyamides as the material ensures uniform separation of the biofilm in biofilm reactors with a moving layer. The packing significantly increases the level of oxygen utilization, and therefore, is widely used in aerobic and anaerobic treatment processes.
| Size mm | Length, m. | Specific gravity kg / m3 | Film weight, kg / m3 | Specific area, m2 | 
| 120*0.35 | 77 | 3,6 | 84 | 380 | 
| 150*0.45 | 44 | 3,2 | 69 | 310 | 
| 180*0.45 | 30,8 | 3,1 | 57 | 265 | 
| 200*0.45 | 25 | 2,8 | 55 | 260 |