The advanced thermostatic controls regulate temperatures to within a +- 1C with instant shut-off should either the hot or cold water supply fail. Reassuringly, the Waterfall Shower Collection never allows the water to become scalding hot. With ten separate designs, Externally, Waterfall showerheads have that marvellous clean contemporary look and stay that way due to their rub-clean, anti-scale nozzles. Internally, the precision-made high quality brass body ensures they keep working reliably for a long time to come