This is the Apeks DIN to Yoke Converter Features: Allows Regulator w/DIN Connector to Mount on Cylinder w/Standard Yoke Valve Critical Accessory for Traveling Diver No Need for Tools Threads Directly to Firs-Stage DIN Assembly Precision APEKS Machining and Quality Control Procedures High Polished Chrome Plating Over Marine Brass The APEKS DIN-to-Yoke converter allows a regulator with a DIN connector to be mounted on a cylinder with a standard yoke style valve. This is a critical accessory for the traveling diver that owns a DIN regulator. No need for tools simple thread to first stage DIN assembly. Precision Apeks machining and quality control procedures. Converter is made from high polished chrome plating over marine brass.