Backmounted Counterlung positions lungs behind the
diver leaving the chest free for attachment of additional tanks and
accessories. This also allows improved streamlining with less drag and
better horizontal trim.
Features a 2 piece bag design for improved WOB
performance and easy removal of the internal lung for cleaning or
replacement. ADV Upstream Valve design is reliable and resistant to free
flow which is a benefit for the addition of valuable diluent gas. All
gas delivery systems on the Prism 2 have both automatic and manual
function. Water Trapping T-pieces keep excess water from the breathing
loop inside the counterlung for easy draining. Streamlined Hose Fittings
keep LP hoses routed inside closest to the diver which avoids overhead
interference. Machined DIL and O2 MAV controls ensure a rugged and
reliable design, also allowing offboard gas plugin on both sides.