The Oceanic FDXi First Stage Dive Regulator is a cold-forged, over-balanced diaphragm first stage with an environmentally sealed design. The inline arrangement minimizes pressure loss common to traditional L-type configurations, delivering efficient flow in a compact, lighter package for scuba and diving gear setups.

Constructed from forged marine brass, this regulator first stage supports flexible hose routing with four low-pressure ports and two high-pressure ports. It includes a fixed yoke knob and offers an optional 300 bar DIN fitting for compatibility with a range of diving gear. The FDXi is Nitrox compatible up to 40% and features an environmental protection system to withstand marine environments.