Bi-Meyal T'stat, 4" 1/2 x 2 – 1/2" long stem from base of stem, 1/4" M tabs, 1/4" has spring clip for 1/4" dia Key Slot Knob, Star #2R-Z68550 Pointer Knob, Non-Stock.Star Heater/Steamer 35SSA, 70SSA Replaces The Following Manufacturer OEM Numbers Are Used For Reference Only, See Policies For Details. OEM OEM# Star MFG 2T-Z7202 Star MFG Z7202