Mares XR 75XR AST 1st Stage

Type: Regulators

The 75XR AST first stage has been design to withstand cold waters, extreme depth and demanding dives - with patented AST Auto Sealing Technology!

  • 4 Vertical and 4 radial LP ports (3/8" UNF) 
  • Two pre-oriented HP ports
  • Perfect, snag-free LP hose positioning
  • Full metal body
  • Chromw-plated marine brass
  • Compact, solid, one-piece body
  • Balanced Diaphragm – DFC preferential flow path
  • Extreme reliability  – highest safety
  • Maximised breathing comfort
  • Cold water kit = keeps water out of the main spring chamber + prevents ice buildup + keeps silt and contamination out
  • Cold water resistant
  • DIN only
  • Designed for extreme depth, demanding dives & mixed gas diving (Helium, O2, Nitrogen)
  • For twinset use but equally suitable for single or stage cylinder configurations

 AST- Auto sealing technology

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