PACKAGE INCLUDES: - HK Army Aluminum Tank - HPA Line - Ultra Compact Regulator - Fill Level Gauge  TANK: The aluminum tanks come with the standard High Pressure compressed air regulator set to the standard output pressure of 800psi. - Aluminum Tank - 48ci / 3000psi - Output Pressure 800psi - Fill Level Gauge  REGULATOR: This ultra compact regulator stands just 3 inches tall and threads directly onto the HPA tank. In so doing it eliminates the need for a separate UFA and keeps your air rig profile to a minimum. What sets this regulator apart from competing models is its integral on/off valve. This enables you to depressurize the system prior to unscrewing it from the tank to elevate wear and possible damage on the tank threads and o-ring. HPA LINE: The SS Airsoft Line was developed during the rise in popularity of High Pressure Air (HPA) Airsoft systems in the United States.  Unlike some other lines in the market, our SS  Lines use a durable wide bore line protected with high-strength nylon sheathing to prevent general wear during games. The biggest benefit of the wide bore line we use is that it allows for more air passage than traditional 6mm macro line. This helps improve refresh rate and helps drive air-hungry systems like Daytona Guns or GBB guns that have been HPA tapped.