Control water flow, electrically. Use with preexisting control systems. Connect directly to the same power supply to automate water flow (on/off) in conjunction with the fan. Safeguard against power outage. If operating fogging units manually (no control system), a water solenoid installed in the units water supply line will shut off water flow in the event of a power outage. Include: 8? cord w/ liquid-tight connector, NEMA 4 Water-tight components, Swivel hose x 3/8? OD tube connection