Mars 33957 High-Pressure Cut-Out Control, 400-200

About the Mars 33957 High-Pressure Cut-Out Control, 400-200

Get it now and save on the Mars 33957 High-Pressure Cut-Out Control, 400-200 at PlumbersStock online. A pressure switch senses negative pressure in a furnace and shuts it down as a safety measure against harmful fumes and gas leaks. It's easy to replace. Mars designs HVAC solutions that are both affordable and practical.