Trerice 91400-R02-20-B05-A19 Self Operating Regulator, INDICATING TEMPERATURE REGULATOR, RANGE 40F TO 90F - 5C TO 30C, 20 FOOT SEAMLESS COPPER TUBING, PLAIN CONNECTED COPPER BULB 1 INCH X 16 INCH, 34 INCH NPT, SINGLE SEATED STEM IN TO CLOSE, 250 PSI BRONZ