Delta Shower Systems are one of our best selling products but we know they can be a little tricky to set-up. There are many components that are required to build a Custom Shower System. We have included all the necessary Rough-in Valves and component pieces to make this package fully ready to install. This Single Handle Shower Control Features a Delta Monitor 14 Series Cartridge with a 7.96 GPM flow rate at 80 PSI. The 3-Setting Shower Diverter Handle Control with Delta R11000 Universal Diverter Rough-In Valve allows you to create a custom Delta Shower system. The Diverter Valve sits in between your main shower mixing valve and your peripheral shower system sprays. With 3 settings you have 2 individual positions and 1 shared position. This means you can run either shower system individually or both together at the same time. This Delta Shower System has been expertly optimized for this water output and will have good water pressure even at 60 PSI.