Jacuzzi #2560-040 Flow Switch fits all 2007+ J-355, J-365 , J-375 and J-385 model hot tubs with LED control systems.
If your hot tub has a red LED temperature display, this is the right switch for the models listed above.
If you have a FL1 error on your control panel, make sure the circulation pump is running and moving water before replacing the flow switch.