Oceanic Regulators

About

Oceanic Regulators — From the Legendary EOS to the Modern ZEO Oceanic regulators carry a genuine engineering pedigree — the ZEO is the direct descendant of the legendary EOS, a regulator long known among divers for an exceptional breathing profile. Across the lineup, Oceanic backs its regulators with lifetime warranties and free parts for life, a meaningful commitment that reflects confidence in the underlying engineering as much as it reflects customer service philosophy. At DiveCatalog.com, we carry the current Oceanic regulator lineup — first stages, second stages, and complete sets — as an authorized dealer. The Oceanic Regulator Range ZEO — The Flagship, Built on EOS Heritage The ZEO takes the celebrated breathing profile of the EOS and adds a chrome-plated marine brass valve that's both corrosion-resistant and genuinely better in cold water. The all-metal valve construction encourages exhaled water vapor to condense on the valve housing, where it recirculates with the airflow on inhalation — a clever detail that actually reduces "dry mouth" rather than just claiming to. The ZEO pairs with the FDX-i first stage: a cold-forged, over-balanced diaphragm design that's environmentally sealed, with an in-line layout that limits the pressure loss inherent in "L"-type first stages, keeping it efficient and lightweight. Includes Oceanic's patented Dynamic Adjustment technology, inhalation effort control, dive/pre-dive switch, swivel, and an orthodontic mouthpiece. Delta 5 — Cold-Water-Ready Performance The Delta 5 is built for consistent performance from shallow stops through serious depth, with a pneumatically balanced all-metal valve, dive/pre-dive switch with patented dynamic airflow adjustment, and a mechanical purge button for stable purge airflow. The paired eDX first stage is environmentally sealed with a heat exchanger specifically for cold-water performance, nitrox-compatible up to 40%, and built with a compact 2.5-inch front profile and ergonomic exhalation ve