Flexible modular system for safe and sterile media transfer for DURAN® GL 45 laboratory bottles. The system is available with 2 or 3 so-called ports (connections). 4 different outer diameters of tubes (1.6 mm, 3.0 mm, 3.2 mm, 6.0 mm) can be used, a sterile pressure compensation (membrane filter 0.2 µm) is available optionally. Depending on the use, the single parts can be combined in various ways. Unused ports can be provided with a blind cap. All single parts are autoclavable. The system is suitable for application in the field of HPLC or bio-technology and each process where a media transfer is required. Used materials are PP and PTFE. Tmax = +140°C.