Marketing InformationTaco iSeries® mixing valves provide precise and cost effective temperature control for your heating systems, the flexibility of zone to zone control, plus built-in protection against boiler flue gas condensation. Available in 2-way, 3-way or 4-way injection configurations, for either outdoor reset control or fixed water supply temperature applications and operate off constant power or relay end switch. Features include a ball valve design, high Cv, manual operation button, solid state microprocessor, multi-status LED indicator light and easy, one hand actuator removal.