

Apeks XTX50 Octopus
By Apeks · in Octopus & Alternate Air
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Quick Facts About Apeks XTX50 Octopus
- Pneumatically balanced alternate second stage
- Breathing-effort knob and Venturi lever
- Two-stage progressive purge
- Yellow front cover and 36-inch yellow hose
- Left/right conversion by an authorized Apeks technician
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Breathing-effort and Venturi controls
The XTX50 Octopus puts both controls on the alternate second stage. Its progressive purge and yellow identification are part of the same package.
An adjustable XTX50 alternate second stage
The Apeks XTX50 Octopus provides a pneumatically balanced second stage with breathing-effort adjustment and a Venturi lever. A yellow front cover and 36-inch yellow hose identify its alternate-air-source role.
Who this suits
It is a candidate for a diver who wants adjustment controls on the alternate second stage as well as clear visual identification. The purchase here is the octopus, not an XTX50 first-and-second-stage regulator set. Match it to an appropriate first stage and system configuration.
Adjustment and purge controls
The breathing-effort knob changes the opening effort, while the Venturi lever provides the second airflow control. The purge is progressive: the source describes a lower flow when pressed at the side and a fuller purge at the center. Learn those controls from Apeks’ operating instructions in the context of your training.
Hose routing has a service boundary
The second stage supports left- or right-handed hose configuration. Apeks specifies that the conversion is for an authorized service technician. That makes it a configurable design rather than an invitation to change the internals during ordinary setup.
Check the alternate package
The source lists a yellow front and 36-inch hose. Confirm the exact compatible regulator configuration and included items when comparing another listing. The useful distinctions are the balanced valve, adjustable controls and reversible design.
What divers ask about the Apeks XTX50 Octopus before buying
Is this a complete regulator set?
No. This listing is the XTX50 Octopus alternate second stage.
It should not be confused with an XTX50 set that also includes a first stage.
How long is the listed hose?
The retained source specifies a 36-inch yellow hose.
A yellow front cover is also listed for identification.
Can the hose come from either side?
The design supports left/right conversion.
Apeks says an authorized service technician must perform that conversion.
Does it have breathing adjustment?
Yes. A breathing-effort control knob and a Venturi lever are listed.
Use the operating instructions to understand their function.
Specifications for Apeks XTX50 Octopus
- Selected source version
- Apeks XTX50 Octopus
- Stage type
- Pneumatically balanced second stage
- Adjustment
- Breathing-effort control knob and Venturi lever
- Purge
- Two-stage progressive purge
- Visibility
- Yellow front cover and hose
- Listed hose length
- 36 inches
- Hose routing
- Left/right conversion by authorized service technician only
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