The DVGW approval confirms TECEflex's hygienic and biological suitability for use with potable water and its long life of at least 50 years. The O-ring free axial pressing technology is a forte as well. The joints are free of gaps, and hygienically critical stagnating water can build up nowhere. The materials used for the fittings are approved of all over Europe. Additional protective layers, which are problematic in processing, are no longer required on account of the corrosion-free CR brass of the TECEflex fittings. TECEflex is suitable for every quality of potable water.