SUMERAIN Complete Shower System with Rough-in Valve, Rainfall Shower Faucet with Hand Shower S3226NI-B-8

Features

• 1. Advanced Pressure Balance Cartridge for Scald Protection​ – The C-UPC certified pressure balance ceramic disc cartridge actively monitors water pressure to prevent sudden temperature changes, protecting you and your family from scalding injuries. Consistent, safe water temperature every time you shower.
• 2. Comprehensive Certifications & Custom Fit Support​ – The rough-in valve, showerhead, handheld shower, shower holder, and hose all carry ICC-ES PMG certification, meeting ASME A112.18.1/CSA B125.1-2018 (same standard as cUPC). If the rough-in valve is installed at an improper depth, we can provide customized parts to minimize your loss.
• 3. Non-Return Check Valves for Added Protection​ – Cold and hot water inlets feature built-in non-return check valves that prevent backflow and water hammer, reducing noise when you turn on the faucet. They also protect other plumbing fixtures in your home. Plus, this product is Massachusetts-certified, meeting one of the strictest state standards for safety and reliability.
• 4. Pressure Regulating Valves for Steady Mixed Water​ – Integrated pressure regulating valves in both cold and hot water inlets eliminate large pressure differences, ensuring a continuous, comfortable mixed water supply – no sudden fluctuations.
• 5. Secure Connection & Water-Saving Performance​ – The rough-in valve features standard American NPT 1/2" male threads for a firm, leak-free connection that helps prevent flooding in your home. Both the showerhead and hand shower deliver 1.8 GPM (6.8 L/min), are listed in the California CEC Modernized Appliance Efficiency Database and DOE list, and hold WaterSense certification compliant with EPA WaterSense specification for showerheads (Version 1.1, July 26, 2018) – saving water without sacrificing pressure.