The R-200 first stage is the first TUSA product to offer a balanced diaphragm system. The ports feature left-right symmetry (H.P. x 2, L.P. x 4) for easy tank settings, even for beginners. The second stage of the RS-230 regulator includes an exhaust resistance adjustment function for fine adjustment of airflow according to individual needs. There is also an optional cold water diving kit available.

• Balanced diaphragm first stage
• Two H.P. ports and four L.P. ports
• Optional EK-23 environmental kit available

• Ortho-consciously designed mouthpiece
• Breathing resistance adjustment knob

First stage
Balanced diaphragm type first stage (R-200)
The RS-240 and RS-230 are the first regulators from TUSA to feature the balanced diaphragm system for the first stage. The balanced diaphragm system offers minimum variation in intermediate pressure in relation to changes in residual tank pressure. The ports feature left-right symmetry (H.P. x 2, L.P. x 4) for easier tank adjustments, even for beginners.

Optional environmental kit
The R-200 can be equipped with the EK-23 environmental kit which has been specially developed to ensure smooth operation by the first stage when diving in a cold water environment of 41°F to 50°F (5°C to 10°C) and to protect the first stage when diving in sandy or silty conditions.

Second stage
Ortho-consciously designed mouthpiece
The new mouthpiece, developed with ergonomic engineering in mind, 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 circumstances at any given time. With the S-40 and 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.

Suggested Retail
$425.99