Type "CR": Includes only the Series "CR" Control Valve without solenoid
or pressure controller - for use with other thermostats.
"CRS": Includes 3/8" 8-watt solenoid valve for electric operation w/thermostat
or pyrometer controller. Specify electric current specifications for solenoid.
(Extra for other than 110 or 120 volt. 60 hertz current.)
Replacement 3/8" Solenoid Valve
*Part #20169, ECI-L8040G21