Halcyon's H-75P First Stage Regulator boasts refined features that guarantee consistent delivery, offering performance that stands out as one of the best in the industry. Balanced, freeze-resistant piston design Rotating swivel Two HP ports, five high-flow LP ports 300-bar DIN, compatible with 40% Nitrox The Halcyon Halo Second Stage Regulator by offers a natural underwater breathing experience, setting it apart from competitors. Balanced, adjustable downstream valve Adjustable inhalation resistance Air Control Vane (ACV) Compatible with 40% Nitrox Included 2 x Halcyon H-75P 1st stage 2 x Halcyon Halo 2nd stage