The xBloom Studio features an internal pump, allowing you to choose between using the included water tank or connecting to an external water source with 1/4" OD tubing. For integration into a pressurised system from your home or filter system, this accessory ensures seamless plumbing without risking damage to your machine.For non-pressurised sources like a 5-gallon jug positioned under your coffee cart, simply attach the tube (up to 19 inches long) directly to the machine. FOR XBLOOM STUDIO ONLY Do not connect xBloom Studio to a pressurised system without employing this accessory. For any queries regarding compatibility, please reach out to [email protected]. Included: xBloom Inline Pressure Regulator (Max input pressure: 170PSI) Stem Elbow Connector - 1/4 Stem x 1/4 - White Two 1/4" Water Tubes - White, 1000mm/39in + 500mm/19in