Some Divers require more, for them RALF TECH designed and developed the HEAVY DUTY line.A line made up of three families meeting distinct but complementary needs with a common point : the robustness of the products.

From its inception RALF TECH always backed up its claims with real experience; humanitarian expeditions, historical dives, far-flung adventures, deep dives and today the WR1 record. After the basic research, experimentation is of fundamental importance. This different approach to diving has made possible the development of products able to cope with the most extreme operating and weather conditions.