Quantity of x3, new old stock mercury thermostat switch or industrial HVAC mercury tilt switch in a hermetically sealed glass vial with flexible, insulated wire leads attached.

Lead wires are 5" long. The mercury contact posts are both in the shape of an "L", set at right angles to one another, one slightly longer than the next.

Sealed glass tube measures 1-1/2" long, 1/2" diameter, assembly overall length is 2". Model number etched in glass reads: "AS431A35" on one side, "18-9" or "6-81" on opposite side.

Likely made by Honeywell, however NO manufacturer name is printed on it.

Quantity: (3)

**Continuity tested to ensure working**

Condition as shown in the images. Selling to only Canada. All sales are final, no returns.