The VS510SZ Printed Circuit Board is a high-quality replacement PCB designed specifically for Balboa VS510SZ spa control systems. Acting as the central control unit, it manages all key spa functions including temperature regulation, jet activation, filtration cycles, and accessory support. Engineered for compatibility with a range of spa models, it supports multiple pump configurations, ozonators, and lighting systems to maintain a smooth and responsive spa experience. Ideal for system repairs or upgrades, this board is a direct replacement for several legacy Balboa models, ensuring reliable performance and simplified installation.