The Neptune III ID250 Full-Face Mask Package combines a transparent polycarbonate visor and silicone face seal with an integrated vertical, body-balanced second-stage regulator for natural breathing and built-in communications compatibility. The package is built for scuba diving and professional underwater use, with an air-circulation system to reduce fogging and a 3D equalization system to enable hands-free nostril closure. The kit includes a purpose-built Neptune III backpack and modular extender kit for mounting cameras, lights, or comms while on the dive. Technical features such as the high-performance first stage, dual-scale pressure gauge, and Extraflex quick-disconnect hose support reliable performance in cold and variable conditions.