The Mistral La Spirotechnique Vintage Double Hose Scuba Regulator is a scuba diving regulator manufactured by La Spirotechnique in France. It features a double hose design and is considered a vintage piece. This unit is completely rebuilt, rechromed, nos diaphragm and cage valves. Mouthpiece is in great condition. New after market serial tag. No idea of original serial number! Also has the high pressure port for a gauge. Adapter for 7/16 gauge hose included. Don’t let this gem go. Worth every dollar. Shipping anywhere in the world at buyers expense!!! Bought these about four months ago and finished the rebuilds. This unit also has a din fitting . No yoke included.