NX608 Ultraflex Hose 1/2" (DN12) - 1 1/4" (DN32) The NX608 is one of the most flexible sewer hoses. This plastic sewer hose is resistant to kinking. A plastic sewer hose can save a lot of energy due to the lower flow resistance than with rubber sewer hoses. The weight of the hose also plays a major role in this. Core: Polyether polyurethane Strengthening: Aramid fiber Surface: Polyurethane Temperature: 40°C to +60°C