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Wide Flange Thermostat Gasket, non-asbestos. High-temperature. Fits most 1950s model thermostats such as, Robertshaw, Wilcolator,
Narrow Flange Thermostat Gasket, non-asbestos. High-temperature. Fits most late 1950-60s model thermostats such as, Robertshaw,
Grayson TS9 or 11 Safety Valve Gasket. OD is 1 9/16 inches. ID is 1
Copper Grayson TS7 Safety Valve Gasket. OD is 1 3/8 inches. ID is 1 1/8