About the Lennox 80W57 Pressure Switch, 0.65, 103247-09
Keep your heating and cooling in great condition with the best HVAC supplies on the market, like this Lennox 80W57 Pressure Switch, 0.65, 103247-09. Don't hesitate to contact us if you aren't sure this is the part you need. 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.