Commercial 6.0 for Windows - Version 6.0 Microsoft Windows XP /Vista /Windows 7, 8, 10 & 11(32-bit & 64-bit).Multiple Printers on a network fully supported.Fire Sprinkler Calcs per NFPA 13,15,16,231-C.Pipe Network Connectivity and error checking.K-Factor and Pipe Diameter list boxes are fully editable.Inside Hose and Outside Hose Streams.Fittings expressed as letter symbols ( EE, 2E, 2T, ... ) or pipe length.Friction losses calculated using the Hazen-Williams equation.Equivalent Length and C-Factor automatic retrieval and display.Hydrant Flow Test and Tank Flow Utility.Grid Estimator with Automatic Peaking of the Most Remote Area.Pipe Table Editor, Velocity Analyzer, Equivalent-K Calculator.Backflow Preventer and Double Detector Check as fixed pressure loss.Booster Pump discharge & net positive suction analysis.Spreadsheets, menus, icons, tool bar for rapid data entry & editing.Printer Font Selection Menu with support for parallel and USB printers.Create ADOBE PDF Submittal Report. Adobe PDF Click icon to download a Submittal Report.Paste results to Excel and customize your output data.Network compatible and twice as fast as Commercial 4.4.User Manual including onscreen PDF Help.