Entire regulator body is manufactured as one piece to prevent yoke or constant flow selector knob breakage and regulator leakage. The unit is designed to provide regulated pressure of 40-60 psig and flow of 100lpm minimum for the operation of two LPS demand valves or one LSP demand valve and LSP aspirator, or any automatic ventilator. Plated brass construction allows the unit to withstand corrosive materials, marine environment and hard weather conditions. This regulator is designed for use with a portable or fixed oxygen cylinder ("D" and "E" size). Yoke, pin index, two male oxygen DISS outlets (with check valve) 40-60 psi outlet pressure, CF with barbed outlet, (1, 2, 4, 6, 10, 15, 25 LPM), gauge cover)