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Hands down Apeks' most popular diving regulator, the Apeks XTX 50 delivers legendary reliability, smooth breathing, and unmatched hose-routing versatility. Built around the proven DST first stage with a rotating turret, it features four angled medium-pressure ports that allow optimal hose positioning without sharp bends. Paired with a feature-packed, pneumatically balanced second stage, the XTX 50 is an exceptional choice for cold-water, technical, sidemount, and recreational divers alike.
Diver Changeable Exhaust (DCE) & Modular Customization
The XTX 50 includes Apeks' innovative Diver Changeable Exhaust (DCE) system, allowing you to swap between a wide exhaust tee (to push bubbles away from camera lenses and mask view) and a compact narrow exhaust tee for a streamlined profile. Both sets of exhaust tees come standard in the box.
Looking for sidemount or twinset routing perfection? Upgrade your first stage with the Apeks 5th Port Upgrade Kit for DST First Stage.
First Stage Features
- Over-Balanced Diaphragm Design: As you descend, the medium pressure gas in the hose increases faster than ambient depth, yielding effortless airflow at extreme depths.
- Rotating Turret & Angled Ports: 4 Medium Pressure (MP) ports mounted on a smooth rotating turret plus 2 High Pressure (HP) ports provide ideal hose alignment for any setup.
- Environmental Dry Seal System: Completely isolates the main spring chamber from water, preventing internal freeze-ups in cold Canadian waters while keeping out silt and marine debris.
- DIN or Yoke Options: Available in 300 Bar DIN or standard Yoke (INT) connections.
Second Stage Features
- Pneumatically Balanced Valve: Ensures smooth, consistent, low-effort breathing regardless of tank pressure.
- Progressive 2-Stage Purge Button: Press the edge for a gentle flow (ideal for filling lift bags) or press the centre for full purge capacity.
- Breathing Resistance Control & Venturi Switch: Tactile control knob lets you dial in cracking effort, while the soft-touch Venturi lever prevents unwanted surface free-flows.
- Antibacterial Moulded Protection: Moulded second stage components are infused with an additive that actively kills MRSA, E. coli, fungi, mould, and viruses.
- Patented Heat Exchanger: Surrounds the valve mechanism to draw in ambient water warmth and dissipate gas-expansion cooling.
- Comfo-Bite Mouthpiece & Flex Hose: Lightweight braided flex hose combined with the bridge-supported Comfo-Bite mouthpiece virtually eliminates jaw fatigue.
- Reversible Hose Configuration: Can be converted from right-hand to left-hand hose entry by an authorized Apeks service technician.
Technical Specifications
| Brand | Apeks Marine Equipment |
|---|---|
| Product Model | XTX 50 Regulator |
| First Stage Type | Over-Balanced Diaphragm (DST) with Rotating Turret |
| Environmental Sealing | Environmental Dry Chamber (Cold Water Certified) |
| Port Count | 4 MP Ports (on turret), 2 HP Ports (Optional 5th axial port) |
| Second Stage Type | Pneumatically Balanced Demand Valve |
| Nitox Compatibility | EAN40 Compatible Out of the Box |
| Included Accessories | DCE Interchangeable Wide & Narrow Exhaust Tees, Lightweight Braided Hose |
| Best For | Cold Water Scuba, Technical & Sidemount Diving, Underwater Photography, & Travel |
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