Manufacturer : PoseidonCode : 3950 MThis version of the Cyklon is called Metal,simply because the second stage housing is made of metal. This makes the second stage even more able to withstand more ‘use and abuse’ then a Cyklon 5000. In all other aspects, this model is identical to a Cyklon5000. The regulator has been out in the field for over 45 years and remains to this day a favorite of the German Navy. Cyklon Metal is delivered with a 70 cm hose.