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The Trane SWT4009 is a pressure switch designed for HVAC applications. This .40WC pressure switch monitors system pressure to ensure optimal performance. It is a critical component in maintaining efficiency and safety in a variety of heating and cooling systems.
The SWT4009 ensures system reliability by accurately sensing pressure levels.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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