I-ST STAGE R4 TEC – EN250A
Small, compact first stage, ideal for cold‑water diving. Excellent choice for decompression stage cylinders or single‑tank configurations. Delivers extraordinary breathing performance, exceeding the requirements of the latest EN250A standard.
Specification
- Balanced diaphragm design
- Dry chamber with additional cold kit
- Material: marine‑grade bronze
- Ports: 2× HP, 4× LP
- Maximum operational pressure: 300 bar
Best Used In Configurations
- Stage tank: perfect
- Single tank: good
- Double tanks: very good
- Sidemount: not recommended