Hollis - PRISM 2 Front Mounted Counterlungs Wrist circumference: 15

Wrist circumference: 15

Advanced Nitrox picks up where TDI Nitrox leaves off and offers a more in-depth look at diving with nitrox including:

weight integration and rear flotation

full-featured hybrid air-cell BC

Hollis - PRISM 2 Front Mounted Counterlungs Wrist circumference: 15Hollis PRISM 2 Front Mounted Counterlungs Prism 2 Front Mounted Counterlungs provide divers with excellent work of breathing in all positions, effective water trapping and a visual reference of critical gas connections. They are fitted with both automatic and manual gas addition systems and a variable volume control valve (used upon ascent to vent excess expanding gas volume or to purge the loop). They provide a flexible reservoir equivalent to the