Compatibility：for pentair mastertemp parts 42001-0052S igniter control module is compatible with MasterTemp and Sta-Rite Max-E-Therm pool and spa heater electrical system Replacemen Number: Our ignition control module part kit is replace for 42001-0052S, 476223 Function: The 476223 igniter control module accurately monitors, diagnoses and controls electrical components to ensure reliable ignition and efficient performance Materials: We use high temperature and corrosion resistant materials to make ignition control components to ensure optimal product performance Service: If you have any questions, please feel free to ask us for answers, we are online for you 24 hours › See more product details