Royal SMOOTH 137 is a new sensor flush valve launched by Sloan Company. It has the characteristics of low noise, surface-mounted, diaphragm structure, etc., and is suitable for rear-fed squatting toilets. The product adopts PERMEX™ synthetic rubber diaphragm, battery-powered OPTIMA® SMOOTH™ infrared sensor and other materials and technologies, and has the characteristics of saving water, anti-destruction, and no need for external additional adjustment.
