Graff | Terra Full Pressure Balancing System Shower in Polished Chrome And Rough / Valve: Trim Only The Terra Full Pressure Balancing System Shower adds simple luxury to your modern bath. With a large overhead rain shower, showering has never been more relaxing and complete. The advanced spray nozzles offer soothing water flow and is anti-clog for easy cleaning. Solid brass construction Wall mount installation 1/2 in Pressure balancing rough valve 8 in Showerhead with 12 in arm and flange No-clog, easy-clean spray nozzles Rough Valve Flow Rate ~7.5 GPM at 60 PSI Showerhead Maximum Flow Rate ≤ 1.8 maximum GPM Optional extension kit Codes/Standards ADA compliant CALGreen