Apeks DS4 / XTX50 Regulator

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The special configuration of XTX50 second stage with the DS4 first stage is popular with many technical divers. The DS4 first stage does not have a swivel turret but a solid body.

The XTX50 regulator can be converted from a right handed hose configuration (as supplied from the APEKS factory in the standard) to a left handed one. This feature is known as the Reversible Venturi System (RVS). Changing the regulator to a left handed configuration is both quick and simple and can be performed by any APEKS Authorised Service Technician.

Image of Apeks scuba diving regulator DS4 XTX50 Regulator

Image of Apeks scuba diving regulator DS4 XTX50

The XTX50 regulator incorporates the new feature of Diver Changeable Exhausts system (DCE). This system gives the diver the ability to change from a small exhaust tee to a large exhaust tee. This gives the user a choice of the wider exhaust tee for minimal bubble interference (essential for underwater photography) and the narrow exhaust tee for a smaller compact comfortable regulator (ideal for use as an octopus regulator).

The XTX50 regulator incorporates a new two-shot high strength composite front cover, improving the durability of the most vulnerable part of the demand valve.

The new ergonomic Venturi lever of the XTX50 has been designed to reduce the amount of grit ingress.

A new swivel hose connection is available at an extra cost. This allows the demand valve end of the hose connection to rotate and pivot, providing a more comfortable fit.

A new silicone exhaust valve has been used on the XTX50 regulator improving breathing performance.

Image of Apeks scuba diving regulator XTX50 Regulator


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Specifications
First Stage	Second Stage

	No Swivel turret 4 medium pressure ports, 4 x 3/8" UNF 1 high pressure port, 1 x 7/16" UNF Polished silver chrome finish Balanced for good performance		Pneumatically balanced system - reduces breathing effort Integrated Venturi Control Extremely efficient exhaust valve Compact integrated exhaust 25% lighter than TX models Comfo Bite mouthpiece - for comfort and to reduce jaw fatigue

Cold water compatible

10 degrees C (50F) water or above

Balanced first stage

Swivel turret first stage

Forged first stage

Dry sealed first stage

Unsealed first stage

Number of first stage HP ports

Number of first stage MP ports

A clamp yoke version available

DIN version available

Removable seat in first stage

Angled first stage ports

Lightweight metal core first stage

Predominantly metal first stage

Left and right hand first stage

Digital display

Regular Apeks size second stage

Small micro size second stage

Neutrally buoyant second stage

Balanced second stage

Venturi control

Diver adjustable breathing resistance

Technician adjustable second stage

Wide exhaust as standard

Option to attach wide exhaust

Reversible second stage

Metallic featured front cover

Lightweight second stage

Re-usable mouthpiece clip

Nitrox M26 version available

Coloured regulators

Free foldable sports bag

Hose protectors

Comfort swivel hose connection

Lightweight ultraflexible hose

Hard wearing protective finish

Designed for twin set use

Suitable for twin set diving

Suitable for extreme diving

Recommended for technical diving

Recommended for extreme diving


Technical information and illustrations...

	First Stage Operation DS4 XTX Reversible Regulator Features XTX Reversible Second Stage Valve Operation XTX Reversible Venturi System (RVS)

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