Mars Low-Pressure Switch, Open on Pressure Drop at 90, Auto Resets at 120 (43375)

About the Mars Low-Pressure Switch, Open on Pressure Drop at 90, Auto Resets at 120 (43375)

Shop the MARS 43375 LP PRESSURE SWITCH CLOSE 12 while it's still in stock online at PlumbersStock. 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 designs HVAC solutions that are both affordable and practical.