Inoxpres press fittings are manufactured from high-alloyed austenitic stainless Cr-Ni-Mo steel n 1.4404 (AISI 316 L). The fittings are marked with laser recording the manufacturers name, diameter, DVGW test Symbol and internal coede. The formed ends of the press fittings are fitted with a black EPDM seal ring as standard for potable water applications.