Balboa Heat Sensor Assembly 30337KIT is designed to work with hot tubs like QCA and Maax/Coleman Spas that use Balboa spa packs and typically have pressure switches instead of built-in sensors inside the heater.

• 4 pin plug connector type
• Dual sensor for temperature and hi limit
• 96" Temperature sensor length
• 3/8" Temperature sensor diameter
• 31" Hi Limit sensor length
• 1/4" Hi limit sensor diameter

Technical Guides:

• The temperature sensor is used to gauge the temperature of the spa water and is fitted into a thermo-well in the hot tub shell.
• This water temperature sensor is attached from the spa cabinet's base.
• The high limit sensor detects excessive temperatures in the heater and is often positioned below the flow-through electric heater.

Additional Information:
Replaces 30337, 305104, 34-0202D-K, 426167, 610989, 9711-27, BAL30337, BB30337KIT, and HQP-851-9054