Your partner for cast iron sewage systems

Fire protection / SML / KML / TML / BML and couplings

RSP® is the team player for retailers, planners and tradespeople when it comes to consulting and solutions in the fields of building construction, laboratory or canteen kitchens, bridge and road construction, sewer connections or roof drainage.



Our team has been active in the field of wastewater technology for over 20 years. We specialise in the production and distribution of cast iron pipes and fittings, as well as fittings for building drainage.

Our products

Fire Protection

The reliable complete solution for mixed installations (cast iron and plastic).


The classic amongst cast iron, collarless sewage systems.



Collarless sewage system for aggressive sewage from kitchens or laboratories.


Collarless sewage system specifically for laying directly in the ground.


Collarless sewage system specially for bridge construction.




A connection that lasts – couplings specially for building construction, civil engineering and bridge construction.

Roof drainage

The complete solution for roof drainage.



The benefits at a glance

  • 100% recyclable products
    Our cast iron pipe systems are made from scrap iron and are 100% recyclable.

  • Short delivery times
    Thanks to generous warehousing, we are able to provide fast deliveries in Germany.

  • High flexibility
    With short decision-making paths, on-schedule lead times and personal support as well as constant expansion of our product range, we always keep up to date for you.

  • Absolute loyalty to distribution channels
    Quality and reliability can only be proven in a three-stage process via wholesalers and trade partners.
    More about quality at RSP®:


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All products and systems at a glance

You can find more information in our product brochures:


Simply write to us personally. Our team will be happy to take care of all your concerns!