About this circuit board
The MS501X PC Board X801162 is an OEM circuit board designed for Master Spa hot tubs and swim spas. This genuine Master Spa control board ensures reliable operation of your spa’s heating, filtration, and jet systems. Part number X801162 provides exact specifications matching your original equipment for seamless integration.
At Bubbles Supply, we guarantee this MS501X circuit board will fit your Master Spa perfectly – no compatibility guesswork. Your replacement board ships the same day you order, backed by our full 1-year warranty for complete peace of mind. This OEM part delivers the quality and reliability you expect from Master Spa’s engineering. Before installation, always disconnect power at the breaker and verify part numbers match your existing control board to ensure proper fitment.








