Suburban 135 Degree Water Heater Thermostat Kit (12v/120vac)  This is a kit for both thermostats for 12v and 135 degree 120vac water heaters. 233534 superseded to:  525007 THERMOSTAT LIMIT - DSI (12 VOLT) STANDARD - 135° (ID #2116) (ID #312154)   THERMOSTAT LIMIT - ELECTRIC ... See More