The 320-1110 ZX Octopus has a Venturi Control Lever that allows the diver to set the octopus 2nd stage in the Pre-Dive position until needed. This is very important in Octopus regulators, since the Pre-Dive position is much more resistant to Venturi-Free-flows that can sometimes result in significant air-loss during a dive. |linebreak|The ZX Octopus has a Breathing Resistance Control Knob that allows the diver to adjust the cracking (inhalation) effort of the regulator. The ZX also includes a Heat-Sink on the inlet side of the Breathing Valve Tube which helps keeps the inner metal parts warmer during cold-water diving to resist freezing. The ZX Octopus comes with a Yellow cover and a 36" hose.