Description
The R4 TEC first stage performs well both in laboratory tests and in real diving conditions. It is a balanced diaphragm design with a dry chamber that seals the working diaphragm and prevents freezing in cold water; this protection is also an advantage in heavily silted water. It is made of marine brass with a high-quality frosted chrome finish.
The first stage can be used with a standard BCD or a wing. It is also popular on stage tanks for technical diving, as the hoses can be stowed neatly along the tank and deployed to their full length when needed.
- Diaphragm, balanced
- Additional dry chamber (COLD KIT)
- Ports: 4 LP, 2 HP
- Maximum working pressure: 300 bar
- Maximum flow at 20 MPa: 3823 l/min
- Intermediate pressure: 9.0 bar
- Breathing resistance: 0.983–1.004 J/l
- Material: marine brass
- Nitrox up to 40%
- Complies with EN 250A, CE1463
- Weight: 637 g
