X800660 Master Spas ® Circuit Board, MAS25R1B

X800660 Master Spas ® Circuit Board, MAS25R1B Master  Spas ® Circuit Board,  Chip MAS25R1B. Board is no longer available, but in most cases, a retrofit kit will work as a complete system replacement. Please contact us with questions about the best retrofit options. Features: Chip Number MAS25R1A and MAS25R1B  (X800660) Product specifications: Face Diameter: 7.0" (17.78 cm) Length: 3.5" (8.89 cm) Compatible with: Down East Spas  (1999-2002) Portsmouth 2-Pump, Portsmouth 1-Pump, Exeter 1-Pump, Exeter 2-Pump, Bar Harbor 240V, Newport, D-5000 2-Pump, D-5000 1-Pump, D-4000 2-Pump, D-4000 1-Pump, D-3000, Providence D, Providence S Legend Series Master Spas (2000-2001) 650 SS, 570 SS Circuit boards are not "plug and play - they will require correct component voltage set-up and dipswitch configuration. Please follow the wiring schematics on the back side of the spa pack cover. Do not buy a circuit board based on appearance, as many boards look the same and manufacturers can change board