About the Mars 29PSL012-457 Manual Reset High-Pressure Switch, Open on Pressure Rise at 410 (43313)
Enjoy savings on the Mars 43313 29PSL012-457 Pressure Switch, Manual Reset, Open on Rise while supplies last at PlumbersStock. 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 makes heating and cooling products that are built to last.
