Parts list: № Number Qty Name Options 1 15H584 1 Pipe Plug 1/2" Next page: ST508699 6604 Temperature Switch ST434642 6601 Temperature Switch ST434645 6608 Temperature Switch ST434644 6603 Temperature Switch ST434643 6602 Temperature Switch ST261946 6610 Temperature Switch PICT-6600.1 6600 Sensor (Water) 3029TF120