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Get a discount on the Mars 33939 Low Pressure Control, 50/90 and update your kitchen with a popular collection. 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 is an industry leader because of their quality HVAC solutions.
| Manufacturer: | Mars |
| Mpn # | 33939 |
| Weight | 0.10 lbs. |
