9620-1 Massage Main PCBThe main PCB for the 9620 type pedicure massage chair has an auxiliary backward and forward button. types 9620, 9650, and 9700, which are older types of massage chairs, are compatible with this circuit board. It is noteworthy that these particular chair types are not compatible with the back forward connection. Features Model Specific Design: Custom engineered to fit Gulfstream Spa Pedicure Chair Model 9620 1, ensuring perfect compatibility and