1st & 2nd Stages

Products (Total Items: 6)
Sort by:
Halcyon H-50D first stage only, Sealed Diaphragm
Part Number:  RGHA-65.100.150
  • Two high pressure opposing ports, and 4 High-flow low pressure ports.
  • High performance balanced diaphragm design.
  • Built for harsh environmental conditions.
  • Nitrox 40% compatible.
  • Externally adjustable intermediate pressure allows for a quick fine-tuning by a Halcyon service technician without fully disassembling the first stage.
    $299.00
    Ships in 1 business day Free Shipping
Halcyon Aura Unbalanced Second Stage
Part Number:  RGHA-65.100.250
  • Simple, compact design.
  • Single adjustment control and pre-set inhalation effort.
  • Downstream valve.
  • Air Control Valve in "dive" position or "Halcyon" position.
    $179.00
    Ships in 1-2 business days. Free Shipping
Poseidon Xstream Black Regulator
Part Number:  RGPS-0100-010
  • High quality regulator system.
  • Titanium black surface coating.
  • Depth rated 200 meters.
    $1,249.95
    Ships in 5-7 Business Days
Halcyon H-75P first stage only, Balanced Piston
Part Number:  RGHA-65.100.175
  • Five High-flow, Low-pressure Ports allow you to customize your hose routing for comfort and convenience.
  • Two opposing high pressure ports allow you to choose where to route your SPG and allows the use of accessories.
  • Nitrox 40% compatible right out of the box
  • Externally adjustable intermediate pressure allows a quick fine-tuning by a Halcyon service technician without fully disassembling the first stage.
    $339.00
    Ships in 3-5 Business Days. Free Shipping
Halcyon Halo Balanced Second stage
Part Number:  RGHA-65.100.275
  • Balanced, downstream valve offers incredibly smooth breathing in all conditions.
  • Adjustable inhalation control refines breathing effort by way of an easy access control knob; this allows the demanding diver an opportunity to fine-tune the air delivery of the second stage.
  • Air Control Vane (ACV) offers a second diver adjustment for the ability to fine-tune breathing.
  • Comfort mouthpiece is standard on every second stage to reduce jaw fatigue and mouth irritation.
    $349.00
    Ships in 1-2 business days. Free Shipping
Hollis 500SE Side Exhaust Regulator
Part Number:  RGHS-240.3501.07
  • 1st and 2nd stage set.
  • Side exhaust configuration allows for left side, or right side use.
  • Servo controlled valve to provide precision airflow and unparalleled performance.
  • Ports oriented for proper hose routing.
  • Great for sidemount tanks, or rebreather bailout bottles.
  • Optimum performance regardless of depth.
    $599.95
    Ships in 1 business day