Lennox 72W40 High Pressure Switch (640 PSI) 102448-01

About the Lennox 72W40 High Pressure Switch (640 PSI) 102448-01

Don't let your HVAC system run compromised. Get this discount Lennox 72W40 High Pressure Switch (640 PSI) 102448-01. This is easy to install, whether you are a novice or experienced DIYer. A pressure switch closes an electrical contact when fluid pressure reaches a certain level. This may happen when it reaches a pressure rise or on a pressure fall.