Blocktherm - Model SL - Self-limiting Block Heater

The  self-limiting  electric  conduction  heater  is  designed  to  be  attached  directly  to  manifolds,  measuring  instruments,  control valves and similar equipment installed in hazardous areas.  It  heats  the  device  by  heat  conduction.  This  is  the  easiest,  safest  and  most  economical  method  of  freeze  protection or temperature maintainance.