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Aqua Lung



About Apeks XL4 Ocea Regulator

The Ocea presents a new concept of regulator to the diving market. One that comes with the inherent build quality and performance shared by all Apeks regulators, but having the prime objective of being the first totally sustainably produced regulator available. Every manufacturing detail has been considered and adjusted to ensure each material and process has been optimized in the pursuit of minimal environmental impact. Apeks partnership with PlasticBank, establishes the Ocea as the world's first ocean plastic negative regulator. Recycled polymers made from up to 70% post-consumer waste (black components) Bioplastic plastic parts made from non-petroleum-based sources. Trivalent chrome plating uses less harmful chemicals and is kinder to the environment. Eco brass is lead free, easier to recycle and has a higher tensile strength than traditional brass.

The Apeks XL4 Ocea is a compact, lightweight regulator suitable for diving in all environments including cold water locations. Its design and low weight help reduce jaw fatigue on long dives. The XL4 Ocea also makes an ideal stage regulator, perfect for the technical exploration diver with a large amount of equipment. The XL4 Ocea is a high-performance option for those technical divers serious about weight savings. Compact machined first stage based on the expedition tested Apeks DS4 platform.

Unique over-balanced diaphragm design, as the diver descends, the over-balancing feature allows the intermediate pressure gas in the hose to increase at a faster rate than ambient. This results in superior performance at depth. First stage has four 3/8" UNF threaded low-pressure and two 7/16" UNF high-pressure ports.

Compact and lightweightsecond stage improves comfort and helps reduce jaw fatigue on long duration dives. High performance pneumatically balanced lever operated poppet valve. Large, over molded self-flushing and controllable purge button. Ergonomic Venturi lever is easy to use and locate. Flexible nylon braided hose has better cold-water performance than a traditional rubber hose. Standard metallic hose connection for interchangeability. Comfo-bite mouthpiece has a unique bridge that fits across the upper palate and does not require bite pressure to stay in place. Re-useable mouthpiece clip makes it simple to change mouthpieces in the field. Durable and flexible rubber exhaust tee provides excellent bubble diversion. Regulator is Nitrox compatible to 40% O2 when new, out of the box and can be O2 cleaned to 100%.

Apeks XL4 Ocea Regulator Features

  • XL4 Ocea Regulator:
  • New Concept of Regulator to Diving Market
  • Inherent Build Quality & Performance
  • First Totally Sustainably Produced Regulator Available
  • Material & Process Optimized for Minimal Environmental Impact
  • Apeks Partnership w/PlasticBank
  • World's First Ocean Plastic Negative Regulator
  • Recycled Polymers Made from Up to 70% Post-Consumer Waste
  • Bioplastic Plastic Parts Made from Non-Petroleum-Based Sources
  • Trivalent Chrome Plating:
    Less Harmful Chemicals
    Kinder to Environment
  • Eco Brass:
    Lead Free
    Easier to Recycle
    Higher Tensile Strength than Traditional Brass
  • Nitrox Ready to 40% O2 Out-of-the-Box
  • Can-be-O2 Cleaned to 100%
  • Compact, Lightweight Regulator
  • Suitable for Diving In-All-Environments
  • Great Cold-Water Rig
  • Design & Low Weight Help Reduce Jaw Fatigue On-Long Dives
  • Ideal Stage Regulator
  • Perfect for Technical Exploration Diver w/Large Amount of Equipment
  • High-Performance Option for Technical Divers Serious-About-Weight-Savings
  • First-Stage Regulator:
  • Machined 1'st-Stage Based On-Expedition Tested Apeks DS4 Platform
  • Unique Over-Balanced Diaphragm Design:
    Intermediate Pressure In-Hose Increases at Faster Rate than Ambient
    Superior Performance at Depth
  • Four 3/8" UNF Threaded Low-Pressure (LP) Ports
  • Two 7/16" UNF High-Pressure (HP) Port
  • Second-Stage Regulator:
  • Compact & Lightweight
  • Reduce Jaw Fatigue On-Long Duration Dives
  • High Performance Pneumatically Balanced Lever Operated Poppet Valve
  • Large, Over Molded Self-Flushing & Controllable Purge Button
  • Ergonomic Venturi Lever, Easy to Use & Locate
  • 29" (73.7cm) Flexible Nylon Braided Hose, Better Cold-Water Performance
  • Standard Metallic Hose Connection for Interchangeability
  • Comfo-Bite Mouthpiece:
    Unique Bridge Fits Across Upper Palate
    Does-Not Require Bite Pressure to Stay-In-Place
  • Re-Useable Mouthpiece Clip: Simple to Change Mouthpieces In-the-Field
  • Durable & Flexible Rubber Exhaust Tee Provides Excellent Bubble Diversion
  • Owner's Manual

Apeks XL4 Ocea Regulator Specifications

1'st Stage Type
Over-Balanced Diaphragm
LP Ports
Four, 3/8"-24 UNF Thread
HP Ports
Two, 7/16"-20 UNF Thread
Adjustable 2'nd Stage
Yes, Dive/Pre-Dive Venturi (Free Flow) Switch
Nitrox Compatible
Yes Up To 40% O2
2'nd Stage Type
Pneumatically Balanced Downstream Demand Valve
First Stage: Trivalent Chrome Plated Lead Free Brass
Second Stage: Bioplastic Techno-Polymer, Silicone
Hose Thread
3/8" Thread
Hose Length
29" (73.7cm)
Regular price $729.00 USD
Regular price Sale price $729.00 USD
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