REHAU engineers care about our national resources, so when they design and develop new products, safeguarding the environment is one of their first priorities. The development of REHAU's DURALOC® solid wall PVC sewer pipe and RAURIB® storm and sanitary sewer pipe reflects this commitment. Manufactured to REHAU's unique specifications and strict industry standards, DURALOC® and RAURIB® deliver safety, longevity and superb performance.