More than ever before, plumbers are using the REHAU RAUPIANO drainage system. This range of product undoubtedly meets the increasing need for product tenacity, quietness while ensuring a high level of living/working comfort within both domestic and commercial building structures. With its outstanding system properties, RAUPIANO can be used in challenging building drainage environments. It is well known for its exceptional acoustic performance and over the last 8 years in Australia has set the benchmark for Acoustic drainage systems.