Murray Temperature Control Thermostat Seal - 21006 Part #: 21006 Line: MCS Murray Temperature Control Thermostat Seal 1 Year Limited Warranty Material: Rubber Type: O-Ring Inside Diameter (in): 2.190 Inch Inside Diameter (mm): 55.63mm Outside Diameter (in): 2.470 Inch Outside Diameter (mm): 62.74mm Thickness (mm): 3.56mm Thickness (in): 0.140 Inch Show More Show Less