This module has the VT (valve test), MV (master valve), COM (common) terminals, plus the first four station terminals.
Rain Bird 635695 Main Module Zero Assembly for Rainbird ESP-4Me
Fits ESP-4ME ESP-4MEi ESP4M ESP4ME ESPME ESPMEI, etc.
This module has the VT (valve test), MV (master valve), COM (common) terminals, plus the first four station terminals.