Hi-Limit,5/16" dia,12"Cap,SPST,Screw Terminal,Coates 61L/E-6

Hi Limits
Single pole rated at 25 amps with temperature rating set at 121°F. Best results are obtained when the bulb is installed in a dry well or groove tube at or immediately before the heater
12" capillary length, 5/16" bulb thickness
This is a safety device! If it is found to be out of calibration, do not attempt to perform a field adjustment! Replace bad hi limit with a new one