Description
Description
The RS-681 regulator from TUSA combines a compact, lightweight design with strong performance for scuba and diving adventures. The ultra-compact balanced diaphragm R-600 first stage is paired with the new S-81 second stage to deliver smooth breathing in a small, reliable package.
Designed with practical features for field use, the R-600 first stage offers 2 HP ports and 4 LP ports, a Venturi adjustment lever, and a built-in moisture exchange plate. The elliptical low-profile case design, along with a MIFLEX hose, enhances flexibility and reduces snag risk during underwater exploration.
Compatibility and comfort are supported by options such as the EK-600 cold water kit for temperatures below 50°F/10°C and the DIN-R600 conversion kit (300 bar/4350 psi). An ortho-consciously designed mouthpiece and Breathing Resistance Adjustment Control provide a tailored feel for divers, while S.E.A. (Sequential Exhaust Assist) helps manage exhaust flow.
Features
Features
- Ultra-compact balanced diaphragm first stage
- EK-600 cold water kit available for temperatures below 50°F/10°C
- DIN-R600 conversion kit available (300 bar/4350 psi)
- 2 HP and 4 LP ports
- Second stage: S-81
- Elliptical low-profile case design
- S.E.A. – Sequential Exhaust Assist technology (Pat P.)
- Venturi adjustment lever
- Built-in moisture exchange plate
- Attached to MIFLEX hose for exceptional flexibility
- Breathing Resistance Adjustment Control
- Ortho-consciously designed mouthpiece
- Eligible for TUSA CARE Free Parts for Life Program – USA Only
Payment & Security
Payment methods
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WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
