POSEIDON DIN MK3  JETSTREAM REGULATOR  [ Inc 70cm/27.5" hose ]

The constructions simplicity guarantees high performance, as well as safety regardless of diving conditions. 

This gives you a regulator that is easy to breathe at any depth. The Jetstream second stage is equipped with a safety valve in case a high pressure airflow should occur. This safety valve prevents the airstream from flowing out through the mouthpiece straight into your mouth. The construction will instead, release the flowing air out into the water via the  first stage safety valve . In all cases it is possible to breathe from the second stage. Tests conducted by the American Navy show that the Jetstream is the only regulator that manages to deliver the correct amount of air at extreme depths and rate of breathing. Jetstream also won the Swedish Navy�s highest classification, well within the objective breathing test in cold waters. Jetstream is approved according to the EN250 cold water standard.