– Dezincification Resistant Brass Alloy – NSF 61 / NSF 672 Certified – Variable Temperature Set Point with Protective Cap – Modulates Flow to Maintain Constant Temperature – No Balancing Equipment Required – Drywell with Temperature Gauge Comes Standard – 1/2" NPT Temperature Port (Factory Plugged) – Equipped with Dual Isolation Ball Valves – Union Connections on Ball Valves – Integral Check Valve in Downstream Isolation Valve – Thermal Disinfection Bypass (160°F) – 100% Made in Italy