Fits perfectly.
Lasts a long time.


The GRÖMO standpipe ensures fluid transitions. As a fixed component in roof drainage, the standpipe provides protection against damage in areas prone to impact. Particularly smart: The perfectly fitting transition from rainwater downpipe to standpipe makes the standpipe cap unnecessary. The built-in seal provides support and keeps the two pipes perfectly centered. There’s more space to move for cleaning thanks to the standpipe’s large cleaning opening (optional).

Assembly of  a GRÖMO standpipe: Step 1 | © GRÖMO

No need for connector

Insert standpipe into the main sewer system. Fits directly in all common sewer pipes, no connector necessary.

Assembly of  a GRÖMO standpipe: Step 2 | © GRÖMO

Just insert

Insert rainwater downpipe into the standpipe’s long-sleeve socket.

Assembly of  a GRÖMO standpipe: Step 3 | © GRÖMO

Mounts quickly without standpipe cap

No standpipe cap is needed thanks to the perfectly fitting transition.