| Close Pressure | : | 0.85 in-WC |
| Open Pressure | : | 0.70 in-WC |
An important part of all gas heated units, the pressure switch monitors for negative pressure to prevent hazardous fumes from reentering your homes atmosphere.
Partners Choice® Pressure Switch, 0.70 in-WC Open Pressure, 0.85 in-WC Close Pressure