The "Singles Reg Package #1 H-75P" is a complete, high-performance scuba regulator set from Halcyon designed for single-tank diving, featuring the reliable H-75P balanced piston first stage, Halo and Aura second stages, a Master SPG, hose kit, necklace, and snaps, all bundled for convenient ordering and efficient air delivery in a DIR/Rec configuration. 

• H-75P First StageAn air-balanced, flow-through piston design with high-flow LP ports and a 360° swivel turret for consistent performance and easy hose routing, suitable for Nitrox 40% out-of-the-box.
• Halo Second Stage: A balanced second stage for primary use, known for smooth, effortless breathing.
• Aura Second Stage
• Master SPG: A pressure gauge (PSI or Bar) to monitor tank pressure.
• Hose Kit: Includes various lengths of low-pressure (LP) and high-pressure (HP) hoses for a standard setup, often with a long hose for the primary second stage.
• Accessories: Comes with a regulator necklace, bolt snaps, and a Voyager regulator bag for storage and transport.