The RS-530 regulator is one of the latest TUSA first and second stages that delivers excellent quality in an affordable, lightweight, travel-friendly system.

The balanced piston R-500 first stage is incredibly small and weighs only 720g. It has a full complement of four low-pressure and two high-pressure ports and is equipped with a quick adjustment screw that can easily be tuned for optimum performance.

Ortho-consciously designed mouthpiece
The new mouthpiece further enhances the comfort of bite, fit, and stability. Even with a light bite, a high level of stability is achieved so there is no fatigue from long periods of usage.

Breathing resistance adjustment knob
Respiration rate and air consumption rate vary greatly while diving according to environmental conditions (water depth, current, etc.) as well as the skill and physical condition of the diver. A necessary condition for safe and pleasant diving is natural breathing in correspondence to the circumstance at any given time. With the S-30 you simply rotate the flow adjustment knob on the side with its ideal click feeling for free control of the air supply volume according to your needs. The multiple thread screws permit speedy and fine adjustment from which you can appropriately sense resistance to exhaled air, to a condition in which you feel almost no resistance.

First stage (R-500)

• Lightweight 720g balanced piston first stage
• Quick adjustment screw for fine-tuning
• Eligible for TUSA CARE Free Parts for Life Program

Second stage (S-30)

• Ortho-consciously designed mouthpiece
• Breathing resistance adjustment knob
• Chrome Trim Ring
• Eligible for TUSA CARE Free Parts for Life Program