I have been trying out the Tusa TR 400 Imperex for two weeks now. I have found it to be very good regulator. The valves seem to be of good quality. At first it worked perfectly and I thought I would never use another regulator. However on my fith dive with the Tusa TR 400 Imperex. As I reached the 40 meter mark the regulator got stuck in the open possition and was squerting out air. When I reached the surface and took the regulator to a reputable dive centre they informed me that the problem was that Tusa had fitted a faulty valve. He fixed the problem and the regulator has been fine since then. I don't think it's a common problem so I wouldn't worry about it.
The Specifiacations are as follows:-
1st Stage
Light weight 620g (21.9oz/1.37lb) inline balanced piston (PAT.) first-stage. Two H.P. ports and four L.P. ports.
2nd Stage
Breathing resistance adjustment knob.
Colours: Black Only.
Overall it's a very nice regulator
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