Apeks XTX40/DS4 DIN Oxygen Regulator

SKU: APXXTX4DS4D MFR: RG114113

Key Features

  • Apeks XTX40/DS4 regulator ensures reliable, consistent airflow at any depth for safer dives.
  • Enjoy effortless breathing with the pneumatically balanced 2nd stage, reducing dive fatigue.
  • Cold-water ready, this scuba regulator's environmentally sealed 1st stage prevents freezing.
  • Nitrox compatible up to 100% O2, the Apeks regulator enhances safety for enriched air dives.
  • Customize your dive with the adjustable breathing resistance on this high-performance regulator.
  • Durable chrome-plated brass 1st stage offers lasting performance for years of underwater use.
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Apeks XTX40/DS4 DIN Oxygen Regulator Specifications

  • 1'st Stage Type

    Over-Balanced Diaphragm

  • LP Ports

    Four, 3/8"-24 UNF Thread

  • HP Ports

    One, 7/16"-20 UNF Thread

  • Adjustable 2'nd Stage

    Breathing Resistance Adjustment Knob
    Dive/Pre-Dive Venturi (Free Flow) Switch

  • Nitrox Compatible

    Built for Oxygen Percentages: 0 to 100%

  • 2'nd Stage Type

    Pneumatically Balanced Downstream Demand Valve

  • Materials

    First Stage: Chrome Plated Brass
    Second Stage: Techno-Polymer, Silicone

  • Hose Thread

    3/8" Thread

  • Total Weight

    38.8 oz (1100g)

  • UPC Code

    886957004397

1 Accessories for Apeks XTX40/DS4 DIN Oxygen Regulator

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  • Regulator Accessories (1)

About Apeks XTX40/DS4 DIN Oxygen Regulator

The XTX technology is available in an oxygen model, designed for oxygen percentages between 0-100%. This compatibility and reliability make it an ideal choice for technical divers performing high O2 percentage deco stops. With green and yellow cosmetic pieces, the regulator is easily identifiable as dedicated to high-percentage oxygen use. It features a unique over-balanced diaphragm design, providing superior performance at depth. The compact DS4 first stage has four medium-pressure and one high-pressure port, and an environmental dry system to prevent ice build-up and contamination.

The pneumatically balanced second stage ensures smooth and easy breathing. XTX purge buttons offer a 2-stage progressive purge for controlled flow rate or full effect. A large venturi lever with a soft touch rubber grip makes it easy to locate and use. The opening effort control knob ensures divers remain in control, while active protection against infection is provided through an additive in all molded parts.

A silicone exhaust valve enhances the regulator's breathing performance, and the Comfo-Bite mouthpiece virtually eliminates jaw fatigue. The patented heat exchanger dissipates cold caused by gas expansion and draws in ambient water warmth. The optional Diver Changeable Exhaust (DCE) system allows switching between small and large exhaust tees, catering to underwater photographers or those seeking a compact regulator.

The regulator can be converted from a right-handed to a left-handed hose configuration, but this must be done by an Apeks Authorized Service Technician. A braided flexi-hose is included, offering lighter weight, more flexibility, and durability. The regulator weighs 38.8 oz (1100g) and comes with an owner's manual.

Apeks XTX40/DS4 DIN Oxygen Regulator Features

  • XTX Technology Available-In Oxygen Model
  • Built for Oxygen Percentages: 0 to 100%
  • Compatibility Coupled w/Excellent Reliability
  • Choice for Technical Divers Doing High O2 Percentage Deco Stops
  • Green & Yellow Cosmetic: Clearly ID Regulator Dedicated for High-% Oxygen Use
  • Suitable for Cold Water Use Below 50 Degree F (10 Degree C)
  • Weight: 38.8 oz (1100g)
  • Owner's Manual
  • First Stage: DST:
  • Unique Over-Balanced Diaphragm First Stage
  • Chromed Marine Grade Brass Construction
  • Environmentally Sealed to Keep-Out Contaminates
  • Delicate Internal Parts Not Exposed to Contaminants: Salt, Sand, Chlorine or Pool Acids
  • Requires Less-Maintenance
  • Secondary Environmental Diaphragm Membrane:
    First Stage Completely-Sealed-Off
    Dry Ambient Pressure Chamber
    Second-Layer of Corrosion Resistance
    Prevention of Freezing-In Cold-Water-Use
  • Four 3/8" UNF (Unified National Fine) Medium Pressure Ports
  • One 7/16" UNF High Pressure Port
  • HP & MP Ports Angled for Optimum Hose Routing
  • Second Stage: ATX40
  • Same Features & Performance as XTX40 Second Stage
  • Pneumatically-Balanced Second Stage
  • Smooth, Easy Breathing
  • Purge Button:
    Large & Easy to Operate
    2-Stage Progressive Purge
    Press Purge On-Side for Lower Flow Rate
    Useful for Filling Lift Bags etc.
    Press Center for Full Purge
    Great for Regulator Clearing etc.
  • Large Venturi Lever w/Soft Touch Rubber Grip
  • Easy-to-Grip Opening Effort Control Knob
  • Silicone Exhaust Valve Improves Breathing Performance
  • Comfo-Bite Mouthpiece Virtually Eliminates Jaw-Fatigue
  • Heat Exchanger (patented):
    Dissipates Cold Caused by Gas Expansion
    Draws in Warmth of Ambient Water
    Helps Prevent Freeze-Ups
  • Active Protection Against Infection:
    Additive that Kills MRSA
    Protects Against E-Coli, Bacteria and Fungi
    Very Effective Against Viruses, Mold, Yeast and Algae
  • Optional Innovative Diver Changeable Exhaust System (DCE)
  • Supplied w/Narrow Exhaust Tee
  • Reversible Second Stage: Left- or Right-Hand Gas Supply Configuration
  • Flexible Nylon Braided Hose

Warranty Information

This product has a limited lifetime warranty.

Key Features

  • Apeks XTX40/DS4 regulator ensures reliable, consistent airflow at any depth for safer dives.
  • Enjoy effortless breathing with the pneumatically balanced 2nd stage, reducing dive fatigue.
  • Cold-water ready, this scuba regulator's environmentally sealed 1st stage prevents freezing.
  • Nitrox compatible up to 100% O2, the Apeks regulator enhances safety for enriched air dives.
  • Customize your dive with the adjustable breathing resistance on this high-performance regulator.
  • Durable chrome-plated brass 1st stage offers lasting performance for years of underwater use.

What's in the box:

  • 2'nd Stage
  • Low-Pressure Hose
  • Owner's Manual
  • MFG Lifetime Limited Warranty