About the Lennox 73W76 Pressure Switch, White, 0.50, R100684-08
Get to work on your heating and cooling system with this Lennox 73W76 Pressure Switch, White, 0.50, R100684-08. 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.