Product Description

I-ST STAGE R4 TEC O2 M26x2 – EN250A

A compact and reliable oxygen regulator, the R4 TEC O2 version is specially designed for use in decompression setups. Built for cold water performance and precision, it offers outstanding breathing characteristics that surpass the latest EN250A standards.

Key Features

• Small, compact regulator in oxygen (O₂) configuration

• Ideal for cold water diving

• Excellent choice for decompression stage tanks

• Breathing performance exceeds EN250A standards

Specification

• Balanced diaphragm

• Sealed dry chamber with integrated cold kit

• Material: Marine-grade bronze

• Ports: 2x HP, 4x LP

• DIN connection with M26x2 thread

• Maximum working pressure: 300 bar

Recommended Configurations

• Stage tank: Perfect

• Single tank: Very good

• Double tanks: Very good