Hot Tub Replacement Parts Heater Sensor DUAL SENSOR: TEMP 96'' HI-LIMIT 31'' 30337 OEM. Replacement Balboa Dual Sensor Assembly with Temperature and Hi-Limit Sensor, Balboa part number 30337. Compatible with all Balboa systems that use this type of sensor. Can be used to replace the 30288 sensor assembly.
- This is for 1 Hot Tub Heater Sensor (DUAL)
- High Quality that's made to last!