Comprehensive Compatibility: Designed for seamless integration with Pentair MasterTemp series (200/250/300/400) and Sta-Rite Max-E-Therm models (SR200NA, SR333NA, SR400NA, SR200HD, SR333HD, SR400HD). This kit serves as a direct replacement for part number 460805, covering both NA and LP series pool and spa heater electrical systems. Enhanced Control System: The package includes a 42002-0007S Control Board and a 42002-0029Z/472610Z Film Pad. Engineered to address common issues such as temperature adjustment failures and unresponsive controls, this kit enhances heating efficiency and system responsiveness. Advanced Technology Upgrades: Equipped with a US-made LM2576HVS chip and superior filter capacitors, our control board ensures clean and stable DC power delivery. The integration of a high-quality optocoupler enhances output response, ensuring faster and more reliable system operations. User-Friendly Installation: Installation is straightforward-disconnect power, open the heater top, remove the old board and membrane pads, and disconnect wire connectors. Our detailed guide assists you through each step, ensuring a hassle-free setup process. Color: Green Material: Plastic+Metal Package Contents: 1*control panel