For special applications our product portfolio also includes coarse-bubble aerators. The JetFlex® CBD SS is available as stainless steel tube aerators. Used in the grit chamber of a sewage treatment plant, in sludge stabilization basins or as post-aeration, they offer the possibility of passing large air volumes and thus circulating the medium in the best possible way or ensuring a certain oxygen concentration in the effluent. In addition, the aerators can be used in aeration tanks to induce vertical flows and thus prevent sludge deposits on the tank bottom. This type of aerator, when operated continuously, can be regarded as completely maintenance-free.