From a friend of mine in Germany :
Hello everybody,
I sell my DDD because I just bought another one and I don't plan to dive with tworebreather for the moment.
The DDD is a mCCR with micrometric valve oxygen injection that can suit as aprincipal rebreather or as asymetric redundancy (that's for the right wording), maybe more.Information about the machine, see the constructors website (that I salute by theway):
http://deepdevildiver.free.fr/Recycleur/Presentation.htm
Information about the rebreather for sale:
http://www.entec.org/DDD/DDDEn.html
KISS, price: 1930 £ or 2700 €