Application: R0550700 PCB Subassembly for Zodiac Jandy Aqualink RS One Touch control system. Replace part number R0550700. Function: One Touch control system control board can ensuring that your OneTouch Control Panel Heater operates smoothly and efficiently. Board comes with white color button and LCD. Easy to install: Mount PCB-Wire the 4-conductor cable to the red, 4-pin terminal bar. Push the 4-pin terminal bar onto the back of the OneTouch PCB. Place the PCB with LCD and buttons back into the box. Insert the screws and hand tighten. Snap the faceplate into place. High quality: lt is meticulously crafted with precision and attention to detail, ensuring durability and reliability. Each component undergoes rigorous testing to quarantee functionality and safety. SATISFACTION SERVICE: If you are not satisfied with our products. We will try our best to solve your problem. Please allow 10-30 days for international deliveries. It is important that we know when your return is expected. We need this in case there are any issues during transit. Good communication is helpful for both of us to resolve any problems and issues.