Control Board Kit Compatible with Mastertemp & Max-E-Therm Pentair Pool and Spa Heater 42002-0007s is designed for use with all NA and LP Series pool and spa heaters. This high-quality replacement ensures your heater operates efficiently, restoring functionality to your system.

• Perfect Fit: Designed for Pentair Mastertemp 400, Mastertemp 300, Mastertemp 200, and Pentair Mastertemp 125 Low Nox Pool Heaters, ensuring seamless compatibility.
• Versatile Compatibility: Works with all NA and LP Series pool/spa heater electrical systems, providing a reliable replacement option.
• Reliable Performance: Restores the functionality of your heater, ensuring consistent operation.
• How to Test: If your heater doesn't start up or the display is no longer illuminated, it's time to replace the control board.