Lawler’s Model 67® is a single solution for specifiers who want Lawler’s exclusive Three-Way Protection™ in a small capacity master controller featuring separate Thermostatic and Pressure Balance chambers. This rare combination of performance specs makes the Model 67® a “true” Type T/P valve, regulating temperatures within 1.5 GPM. The 67® helps engineers “right-size” the valve for low-to-mid range applications (½-25 GPM) without sacrificing performance. With Three-Way Protection™, the small master controller Model 67® delivers protection against runaway temperatures, thermal shock, or scalding should the thermostat, hot or cold water supply fail. That means Model 67®, like every Lawler master controller, not only meets, but exceeds the ASSE 1017 standard.