In these busy times, our customers sometimes ask us to build the products we supply into finished or semi-finished assemblies thereby allowing their engineers to focus on the more important aspects of the project. These “systems” can therefore be complete packages for gas and liquid supply, mixing, dosing, filling, evaporation and vapour source generation or, just as easily, they can be gas-sticks, manifolds or simple panels. Whilst existing designs can be supplied it is far more common that a specific configuration is required and PCT can help throughout the whole design process.