A spa circuit board is the "brains" behind your spa, controlling jet flow, filtration systems, water temperature, as well as the unit's high-limit sensors. Master Spa Parts offers a number of replacement circuit boards.
Built specifically for Master Spas Legend Series models, the MS8000 System Pack (V/N 53231) is the perfect replacement for your spa’s original control pack. Install this genuine, OEM control pack to keep your spa running smoothly!