Flexible modular system with four different tubing diameters (1.6 mm; 3.0 mm; 3.2 mm and 6.0 mm) can be connected. Sterile pressure equalization is possible through use of syringe filter. Unused ports can be provided with a blind cap, Flexible modular system with four different tubing diameters (1.6 mm; 3.0 mm; 3.2 mm and 6.0 mm) can be connected. Sterile pressure equalization is possible through use of syringe filter. Unused ports can be provided with a blind cap, Pack of 2