The CDX5 Balanced Diaphragm First Stage boasts the same high performance found in all Oceanic regulators. It is the perfect regulator for extreme diving conditions, such as ice diving or diving in high sediment. With its rubberised exterior end cap, the CDX5 is protected from possible damage during and between dives. The balanced diaphragm first stage design has been the regulator of choice for many divers who find themselves pushing the envelope. The advanced design of the CDX5 Balanced Diaphragm First Stage isolates the critical seats and o-rings from the harsh environment. This helps prevent internal corrosion and contaminant buildup, leading to more consistent performance between service intervals.