The Honeywell GIDDS‑296123 is a 3/4-inch, 24 V, 4-wire (including end switch) hydronic zone valve featuring an 8 Cv full-port brass body designed for efficient water flow control in heating and cooling systems. Built for reliability and easy maintenance, it offers a straightforward sweat connection installation, a manually operable handle for power outages, and a snap-on removable actuator for service without draining your system. Its full-port design minimizes pressure drop, while the included end switch provides real-time feedback for seamless integration into modern HVAC controls.