The lightweight, simple, compact R2S first stage now includes AST technology - for reliability without compromise.

• Lightweight: 432g sturdy and compact.
• Easy to clean and maintain.
• Piston control.
• Very simple and reliable.
• DIN only.

AST - auto sealing technology

• Keeps the first stage dry. Reliability without compromise.
• The system is automatically activated by air.
• Tested with oxygen and cold temperatures in demanding environments.
• Patented system.