OCEANIC DELTA 4 /FDX-10 REGULATOR WITH DRY VALVE TECHNOLOGY “Scuba Lab Testers Choice! June 2005″ Nitrox compatible to 40% (the recreational limits of nitrox) Designed for extreme depths and cold water DVT(Dry Valve Technology) eliminates moisture and contaminants from entering your regulator Environmentally sealed first stage provides greater reliability, less maintenance and higher performance Balanced [...]