The TUSA RS-1001 Regulator System delivers exceptional performance for divers of all levels. The R1000 balanced diaphragm first stage features a cold water insulation system, two H.P. and four L.P. ports (two high-flow, increasing airflow by up to 15%). The S0001 second stage offers a lightweight, compact composite design, a Venturi adjustment lever for smooth airflow control, and an ergonomic mouthpiece for added comfort. This system provides reliable, high-performance diving in various conditions.