The Tango extension for the underground rainwater and septic tank is a practical solution for increasing the foundation depth of the tank. The extension allows you to adapt the installation to your own requirements. The extension can be cut to size if necessary (cut from the bottom). The Tango superstructure is characterised by its robust construction and easy assembly. The extension is suitable for underground tanks with a capacity of 2,000 l to 5,000 l.
The Tango superstructure is available in two height variants: 40 and 80 cm.