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Oceanic FDX-i 1st Stage

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The Oceanic FDX-i 1st stage regulator provides an improved flow rate, greatly reduced weight and more ergonomic port positioning for better hose routing when compared to the classic right angle first stages.


: $729.00

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The Oceanic FDX-i 1st stage provides an improved flow rate and greatly reduced weight. Additionally, the FDX-i 1st stage features a more ergonomic port positioning.  This provides for better hose routing compared to the classic right angle first stages, and gives you superior comfort.

The cold forged, FDXi First Stage is environmentally sealed. The in-line design limits the pressure loss inherent in “L” type first stage designs.  This makes the FDX-i more efficient and lighter due to its compact form which, again, increases your diving comfort.

You will find a number of benefits from this type of first stage design.  None of the delicate internal parts are exposed-to-contaminants such as salt, sand, chlorine or pool acids. When using your reg, these environmental contaminants can cause corrosion and mineral deposits to form on the mechanisms deteriorating its overall performance.

In addition to this, the FDXi first stage has a secondary diaphragm to completely seal-off the main spring cavity. A sealed balanced diaphragm design, Enviro Kit and patented DRT (Dry Regulator Technology) isolate the main internal components. It also means the FDX-i is excellent for ice diving as it won’t freeze up.

Don’t forget that it’s also perfect for diving in waters filled with contaminants or sediment because it won’t corrode! At 21 oz. (595.3 g), the FDXi is Oceanic’s lightest weight first stage. It has 2-high pressure and 4-low pressure ports assuring a place for all your necessities and accessories.



  • Precision Cold Forged
  • Reduced weight
  • Pneumatically balanced – consistent performance at any depth
  • Environmentally Sealed diaphragm – cold water ready
  • 4 Low Pressure and 2 High Pressure Ports
  • Angled ports for ideal hose routing
  • Improved flow rate over standard right angle first stages



DIN 020545082729

Yoke 020545082705



Make sure to register your Oceanic BCD, Regs and Computer online with Oceanic Australia for a limited lifetime warranty:

1. Visit https://www.submergednation.com/product-registration/
2. Enter you email address and follow the prompts. Done!


Additional information

DIN or Yoke

DIN, Yoke


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