This WEILMCLAIN 591391820 wiring harness includes a convenient block switch for easy control and management. Made for use with WEILMCLAIN models, this harness provides reliable and efficient wiring for your heating system. Keep your system running smoothly with this high-quality harness.

This OEM wiring harness connects the control module to the thermostat, block switch, limit, pressure switch, and gas valve on GV boilers manufactured by Weil Mclain. Improve the functionality and efficiency of your boiler with this high-quality wiring harness.

Used With    GV Boilers

Specifications: