The R-100 first stage features a balanced piston method to reduce the effects of changes in water depth. TUSA’s own inline layout realizes a weight of just 620 grams during actual use, in addition to its compact design. The RS-110 regulator combines a balanced piston method while reducing the total weight of the first stage and second stage to just 940 grams. There are also less parts for easier maintenance.

• Light weight 620g (21.9 oz or 1.37 lb) inline balanced piston first stage
• Two H.P. ports and four L.P. ports

• Lightweight second stage
• Ortho-consciously designed mouthpiece

Features of RS-110
First stage
Balanced piston type first stage (R-100)
The very popular balanced piston type first stage offers superior reliability for stable air supply regardless of depth or residual pressure. Maintenance is also a cinch. The first stage offers an extremely high limit value even for maximum operation values. There are two HP ports and four LP ports. The R-100 first stage features a unique patented inline layout to achieve a light weight of just 620 grams during actual use, in addition to its compact size.

Outstanding rust resistance on R-100 pistons
The R-100 pistons are manufactured from extremely high rust resistant material.

Second stage
Purge button
The purge button features two types of materials: soft elastomer (RS-130) materials and conventional hard materials (RS-110 and SS-10). The hard materials are designed to realize ideal resistance and a secure push, that reduces the possibility of the purge button being pressed accidentally in strong currents. The soft purge button includes a stainless steel frame to ward off external shock and protect the demand lever and other essential parts.

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.