Features:

• Classic downstream valve.
• Diver adjustable VIVA.
• Reversible low pressure hose attachment.
• Big soft purge.
• High flow exhaust valve.
• Compact design.
• Lightweight orthodontically designed mouthpiece.
• Compact design.
• Compatible with all Scubapro 1st stages.
• Yellow hose protector and front cover.
• 1 meter long hose.

Description:

To reduce flow resistance, SCUBAPRO developed VIVA (Venturi-Initiated Vacuum Assist) to power assist every breath. A high velocity air stream pulls air molecules inside the second stage casing, which generates a vacuum behind the diaphragm. As the diaphragm draws further inward, it depresses the lever which maintains the poppet open for a "power assist" breath.
To make this technology even more appealing, SCUBAPRO designed the VIVA system into all of its current regulators to be diver adjustable, so that each diver can adjust airflow for varying circumstances.
The adjustable flow vane can be positioned on the minimum position to minimize free flow in specific diving conditions such as shore dive water entry or practicing buddy breathing.
Classic downstream valve second stages are particularly noted for their legendary safety and reliability.