In extractive gas analysis the sample gas must be conditioned before it enters the measuring cell of the analyser. One of these conditioning stages is moisture precipitating in so-called sample gas coolers. This condensate must be properly removed from inside the analysis cabinet. In applications where it is not corrosive or toxic, it can then be discharged into drains or channels on site. However, often times it must first be collected for intermediate storage and properly disposed of at a later time. The CV-3 to CV-10 series feature vessels in suitable materials with or without fill level monitor for intermediate storage inside or on the system.