FR-390 - Forge Collection Prima Basin Mixer with Push WasteWRAS Approved: Yes Minimum Operating Pressure (bar): 0. 2 Maximum Operating Pressure (bar): 5 Number of tap holes required: 1 Inlet Connection: 1 2" M10 Tap Hole Diameter: 35mm Includes Waste: Yes Flow Rates 0. 2bar (l min): 3. 2 Flow Rates 0. 5bar (l min): 6. 4 Flow Rates 1bar (l min): 8. 8 Flow Rates 2bar (l min): 12. 5 Flow Rates 3bar (l min): 15. 1