For Montague Ranges (where applicable for 48" thermocouple) with BASO type valves (large red or black button on top of valve)
48" EXTRA THICK Capillary, copper tubing with stainless steel tip

For Montague Ovens including, 12B-1, 12R-1, 13B-1, 13P-1, 13R-1, 14P-1, 22C-2, 23C-2, 23P-2, 24P-2, 115A, 115G, 115S, 115X, 115Z, etc.