Apeks XTX50 OctopusThe XTX50 Octopus is Apeks top of the line Octopus in terms of features and performance. It provides the same features and performance as the XTX50 second stage and includes left right hand reversibility. It comes with a high visibility yellow front cover and a 36 yellow hose. Suitable for cold water use (below 10 C 50 F). The XTX50 Octopus has a breathing effort control knob. This allows the diver to desensitize the unit when it not being used. The