TEKMAR 337 tN4 DUAL ZONE MANAGER - THREE & THREE ZONE VALVES

*************The Tekmar Dual Zone Manager 337 has been discontinued and no longer available.************** The Tekmar Dual Zone Manager 337 is designed to simplify the wiring between tN4 thermostats and zone valves. The Tekmar 337 has an internal transformer that supplies power to the TekmarNet tN4 thermostats and connected zone valves.