Balanced diaphragm first stage. 
Simple, strong and reliable with constant intermediate pressure. 
Conic filter. 4+1 low-pressure outlets. 
2 high-pressure outlets. 
Anti freeze dry seal system. 
Second stage with excellent cold water performance. 
Diaphragm block safety ring which assures better functionality  during all phases. 
Exhaust valve. 
Venturi control lever with dive-predive mode. 
Soft front cover. 
Hose length of 730 mm.