Introducing the new Delta 5 Regulator from Oceanic - the latest in a lineage of reliable, durable, and smoothly breathing regulators. With an updated look and improved features, the Delta 5 takes the diving experience to the next level. It comes standard with Oceanic's patented Dynamic Adjustment Technology, dive/pre-dive controls, and a super comfortable orthodontic mouthpiece.

The Delta 5 features an all-metal pneumatic valve for incredibly smooth breathing performance in any condition. Additionally, a heat exchanger positioned on the hose connection to the second stage enhances its already exceptional cold water performance. The Delta 5 is paired with the new eDX first stage, a top-of-the-line cold forged, over-balanced diaphragm regulator that is environmentally sealed and equipped with a heat exchanger for improved cold water performance.

Constructed from forged chromed marine brass, the eDX first stage offers a balanced diaphragm design that is inherently environmentally sealed. This protects delicate internal parts from exposure to contaminants like salt, sand, chlorine, or pool acids. This design requires less maintenance compared to regulators with exposed internal mechanisms.

The eDX first stage also features a secondary diaphragm that seals off the main spring cavity, making it ideal for ice diving or diving in contaminated or sediment-filled waters. The Delta 5 eDX Regulator is nitrox-ready up to 40% straight out of the box.

Designed for maximum comfort, the Delta 5 includes an orthodontic mouthpiece that accommodates the natural overbite of the human jaw and a 30" (76.2 cm) 3/8" threaded Maxflex hose for minimal jaw fatigue. The lightweight second stage has a compact 2.5" (6.35 cm) diameter front profile, a dive/pre-dive venturi lever to prevent free-flow, and a dynamic airflow adjustment knob for precise control of air flow during the dive. The regulator comes with an owner's manual for your convenience.

Over-Balanced Diaphragm Design: As depth increases, the intermediate pressure delivered to the second stage increases at a higher rate than environmental pressure, ensuring light, consistent breathing effort regardless of depth or cylinder pressure.

Environmentally Sealed System: Completely seals the main spring cavity and internal components from external water, sand, and contaminants—preventing internal icing in cold water and eliminating internal corrosion from saltwater.

Forged Marine Brass Construction: Precision-machined from forged marine-grade brass with a durable, corrosion-resistant chrome finish for maximum structural integrity and long-term durability.

Optimized Port Layout: Engineered with a compact form factor that provides clean, streamlined hose routing for dual-gauge consoles, transmitter units, and secondary second stages.

Cold-Water Heat Exchanger: Features heat-dissipating external ribs that transfer warm water temperature to the expansion chamber, reducing the risk of freezing in sub-50°F (10°C) water.

Nitrox Ready: Factory rated safe for use with enriched air Nitrox mixtures up to 40% O₂ without requiring additional oxygen cleaning out of the box.