Rohl | 3/4" Thermostatic Rough-In Valve Flow rate 12 GPM at 60 PSI Temperature control only Must order volume control rough valve(s) separately 3/4" NPT inlets and 2 x 3/4" NPT outlets Extension kit included Integrated service stops shut off hot and cold lines individually to service the valve Bottom outlet for tub spout only - 3/4" NPT optional outlet plug included If PEX is utilized, oversize the supply line to 1" for full flow capacity Solid brass construction delivers the utmost in beauty, durability and long-lasting performance Valve is compatible with applicable Perrin & Rowe ® and Rohl ® shower trims