R395 OCTOPUS-The Ideal Octopus.

• Classic downstream valve. Classic downstream valves are particularly noted for their legendary safety and reliability. When in use,
  the downstream valve opens in the same direction as the incoming air flow. To close the valve and stop the air flow, a spring counteracts the force of the incoming air. Therefore, a certain inhalation effort is always required to overcome the spring tension and open the valve.

• Diver Adjustable VIVA (Venturi Initiated Vacuum Assist) flow vane for personalized breathing comfort. Another SCUBAPRO patented feature, the VIVA is available on all SCUBAPRO second stages. VIVA uses the power of a vacuum assist to reduce work of breathing and increase breathing comfort. It is diver adjustable on all current SCUBAPRO second stages except the R295, since it is a
  second stage intentionally designed for diver training courses, rental facilities and divers demanding ready to use equipment. A VIVA in MAX position gives powerful breathing support on every single breath; a VIVA in MIN position helps to prevent free fl ow on the surface, for training, for buddy breathing, in currents or when used as an octopus. 

• Extremely lightweight and compact.  Comfortable for all divers, including novice divers newly initiated in the sport.

•  Orthodontic mouthpiece. SCUBAPRO uses a comfortable orthodontic mouthpiece on every second stage to reduce jaw fatigue and gum irritation. It was developed by dentists and dental laboratories and lasts longer than any other mouthpiece, because only a minimum effort is needed to hold it comfortably in place.

• 1 meter hose for convenient alternate air soruce function with yellow hose protector and yellow regulator cover for easy identification

• Left & right hose attachments for extra flexibility and comfortable positioning, so you can keep it on whatever side feels best. Provided in standard right hand attachment. Left hand conversion can be performed by any Authorised SCUBAPRO service technician.

• Compact size and lightweight materials for comfort and reduced drag during the dive.