About the Mars Low-Pressure Switch, Open on Pressure Drop at 22, Auto Resets at 50 (43372)
Be sure to take advantage of this deal on the MARS 43372 LP PRESSURE SWITCH CLOSE 50 here at 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 products will last you a long time, but parts will wear, and you can find replacements here when they do.
