XTX50 Stage 3 Dive Regulator Set (XTX50 + XTX40 Octopus)

Overview:
The Apeks XTX50 Stage 3 Dive Regulator Set combines the high-performance XTX50 regulator with a reliable XTX40 octopus, creating a complete and versatile breathing system for demanding divers. Designed for both recreational and technical use, this set delivers smooth, consistent airflow, excellent cold-water performance, and optimal hose routing thanks to the swivel turret first stage.

The over-balanced diaphragm first stage ensures superior performance at depth, while the pneumatically balanced second stage provides effortless breathing. Paired with the XTX40 octopus, this setup offers safety, redundancy, and reliability in any diving condition.

First Stage Features (DST):

• Over-balanced diaphragm design improves performance at greater depths.

• Environmentally sealed dry system prevents water, silt, and contamination.

• 2 HP ports and 4 MP ports mounted on a rotating turret for optimal hose routing.

• Ports are angled to eliminate sharp hose bends.

• Durable chrome-plated marine brass construction.

• Suitable for cold water diving.

Second Stage Features (XTX50):

• Pneumatically balanced second stage for smooth, effortless breathing.

• Large purge button with 2-stage progressive purge system.

• Venturi lever with soft-touch grip for easy control and reduced free flow.

• Adjustable opening effort control knob for personalized breathing resistance.

• Active antimicrobial protection against bacteria and fungi.

• Silicone exhaust valve improves breathing performance.

• Patented heat exchanger reduces freezing risk.

• Comfo-bite™ mouthpiece minimizes jaw fatigue.

• Diver-changeable exhaust tee (2 included).

• Braided flexi-hose for durability and flexibility.

Octopus Features (XTX40):

• Pneumatically balanced design for reliable performance.

• High-visibility configuration for emergency use.

• Easy-to-use purge button and Venturi control.

• Durable construction suitable for all diving conditions.

Specifications:

First Stage:

• Type: Over-balanced diaphragm, environmentally sealed

• Connections: DIN and Yoke available

• HP Ports: 2 (7/16" UNF)

• MP Ports: 4 (3/8" UNF) on swivel turret

• Body: Chrome-plated marine brass

• Orientation: Convertible left or right

• Cold Water Use: Yes

Second Stage (XTX50):

• Type: Pneumatically balanced

• Opening Effort Control: Yes

• Venturi Lever: Yes

• Mouthpiece: Comfo-bite™

• Exhaust Tee: Diver changeable (2 included)

• Heat Exchanger: Yes

• Hose: Braided flexi-hose

• Work of Breathing: Avg. 0.70 J/l

• Nitrox: Up to 40% (cleanable to 100%)

Weight:

• Yoke: 1269 g

• DIN: 1139 g