Inspection chamber, as well as set of base parts therefor

A set for a modular inspection chamber comprising:

• a plastic sleeve,
• a plastic base accommodated in the sleeve, and
• at least two branches connected to the sleeve, wherein the base has a flow profile that extends between the two branches and wherein the base is made up of at least two separate base parts that are permanently fixed to one another at their edges facing one another, wherein the sleeve and central base parts have sections of flow profiles and the base parts form a ring which is profiled correspondingly to the central base parts and branches associated with the flow profiles of the base parts,
• wherein a plastic end wall or a plastic end ring closes off the sleeve, and
• wherein the plastic end wall or the plastic end ring is capable of providing support for the combination of base parts.