Scubapro R195 High visibility yellow cover makes it easy to see when it comes time to share air with a buddy in need. Rugged reinforced technopolymer casing is fitted with a large diaphragm for the ultimate in breathing sensitivity, regardless of position in the water. Classic downstream valve comes with a VIVA switch to control free flows. Ultra-comfortable orthodontic mouthpiece is easy to grip yet doesn't inhibit airflow. Yellow super-flow hose is 39in/1m long and features an oversized bore that allows more air to flow on each inhalation. Metal valve housing is built rugged and increases overall reliability. Reversible hose attachment makes it easy to use on deco tanks.