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Poseidon XStream Deep MK3 Regulator Set

Poseidon XStream Deep MK3 Regulator Set

  • 360Poseidon XStream Deep MK3 Regulator Set
  • Play videoPoseidon XStream Deep MK3 Regulator Set
  • Poseidon XStream Deep MK3 Regulator Set
  • Poseidon XStream Deep MK3 Regulator Set

Poseidon XStream Deep MK3 Regulator Set

Product description Poseidon XStream Deep MK3 Regulator Set

This is the regulator of choice for any demanding divers that dive with air or trimix with a maximum of 21% oxygen.

Outstanding performance and certified to 200 meters!

The first stage has a built in over pressure valve.

An Xstream Deep regulator complete with a 70 cm / 27,5 inch hose and a second stage.

Approved to depth (m/f) 200/656 (gas dep.)

5 LP and 2 HP-ports

Low WOB - Servo assisted

IP (bar/psi): 8,5 / 123

Air: Yes

Trimix: Yes (max 21% oxygen)

Nitrox 50% No

Oxygen (99,95%): No

Working pressure 300bar: Yes

Built in anti freeze prot: Yes

O-rings: Nitril/EPDM

US Navy tested: Yes

Oxygen Approved (EN738-1): No

NORSOK approved: Yes

EN250 approved (cold water): Yes

CE Cold water approved: Yes

second stage Xstream Deep Mk3

Color Black

Material ASA/TPU, Stainless steel, Brass

Weight (g/lb) 152/0.33

Volume (ml/cuin) 49,5/3.0

Valve technology Upstream

Flowrate (l/cuft per min) 2150/76

Oxygen cleaned No

Servo assisted valve Yes

Overpressure valve built in to the LP hose No

Dismountable w/o tools Yes

Push button on side Yes

Swiveling Yes

Non keyed (no up or down) Yes

Xstream Deep first stage

Color: Black

Technology: Roll diaphragm

Material: Brass

Valve technology: Spheric

Wheel mounted: Side

LP ports 3/8: 5

HP port 7/16: 2

Flow rate (l/min): 5500

O2 clean: No

DIN G5/8: Yes

EN144-3 compatible: No

Separate yoke: Accessory

Zytel HP seat: Yes

Built in overpressure valve: Yes

Anti-freeze protected: Yes

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Features Poseidon XStream Deep MK3 Regulator Set

Type of connection
Recommended use
Regulators features
LP Number of outputs
HP Number of outputs

Customer reviews and questions (5)

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一直使用到氣瓶壓力低的情況下 供氣仍然穩定 有著很好的不鏽鋼本體 提供優秀的保護

Serious & beautiful


Beautiful workmanship. A very contained inspiratory effort which delivers a good flow of air. It is almost more flexible at the bottom than on the surface (made Togo today and that of happiness!) Happy with my purchase



Excellent regulator, very good scubastore service.

Excellent and fast service!


Excellent Regulator


I’ve had this regulator for 8 months and over 50 dives. It has performed flawlessly even in 5 degree Water. It’s symmetry lends to ease of function. It does have an unusual o-ring size that can be difficult to find. Will purchase again.

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