About the Mars High-Pressure Switch, Open on Pressure Rise at 590, Auto Resets at 418 (43365)
Get a great deal on the Mars 43365 Pressure Switch from PlumbersStock.com. Pressure switches make contact on pressure rise/fall, which enables its switching operation. A pressure switch senses negative pressure in a furnace and shuts it down as a safety measure against harmful fumes and gas leaks.
As the manufacturer describes it, MARS Pressure Switches deliver the reliability and performance that makes them the most trusted electromechanical sensor. The MARS line of pressure switches cover many new R410A applications along with traditional pressure setting switches. It's easy to replace. Mars is known for heating and cooling reliability and innovative solutions.
