Tusa rs-790 regulator – cold water balanced diaphragm scuba regulator

Description

The TUSA RS-790 Regulator is built for divers who want reliable breathing performance, cold-water capability, and long-term durability. Pairing the R-700 balanced diaphragm first stage with the S-90 pneumatically balanced second stage, the RS-790 delivers smooth airflow and dependable performance in demanding conditions.

The environmentally sealed first stage uses a dry ambient pressure chamber and anti-freeze design for use in water temperatures below 50°F / 10°C. Two high-pressure ports and four low-pressure ports, including two high-flow LP ports, provide flexible hose routing and strong airflow.

The lightweight S-90 second stage adds a Venturi adjustment lever, Advanced Flow System, and an Ortho-Conscious Mouthpiece for comfortable breathing and reduced jaw fatigue.

Features:

• Balanced diaphragm R-700 first stage
• Environmentally sealed for cold-water use
• Suitable for temperatures below 50°F / 10°C
• Two HP ports and four LP ports
• Two high-flow LP ports with up to 15% increased airflow
• Pneumatically balanced S-90 second stage
• Venturi adjustment lever
• Ortho-Conscious Mouthpiece
• Available in Yoke and DIN versions
• Eligible for TUSA CARE Free Parts for Life Program – USA Only

Technology:

• Advanced Flow System – Promotes smoother air delivery through the curved housing design
• Cold Water Ready – Designed for diving below 50°F / 10°C
• Environmentally Sealed First Stage – Helps prevent contamination and freezing
• Pneumatically Balanced Second Stage – Reduces inhalation effort
• Ortho-Conscious Mouthpiece – Helps reduce jaw fatigue

Available Variants:

• Yoke – Black
• DIN – Black

Specifications:

First Stage: R-700 Balanced Diaphragm
Second Stage: S-90 Pneumatically Balanced
HP Ports: 2
LP Ports: 4
DIN Rating: 300 bar / 4350 psi
Application: Recreational, Advanced, and Cold-Water Diving
Brand: TUSA

Ideal For:

• Cold-water diving
• Recreational scuba
• Advanced diving
• Dive travel
• Professional use
• Divers seeking smooth, reliable breathing performance