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Order now and get the Mars 39038 150 Limit Switch MR150 Manual Reset 3/4" at PlumbersStock. Limit switches are sensors that detect when a furnace has exceeded operational temperature limits and shut the appliance down as a safety measure. The way it works is that if your temperature gets to a concerning level, the limit switch will automatically open the circuit so it shuts off. The circuit will remain open/off until it is manually reset. Mars products will last you a long time, but parts will wear, and you can find replacements here when they do.
| Manufacturer: | Mars |
| Mpn # | 39038 |
| Weight | 0.10 lbs. |
