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The Service First SWT04218 is a pressure switch designed for use in S8X1 furnaces. This switch operates at .66 inches of water column and ensures proper furnace operation by monitoring pressure levels. It is an essential component for maintaining HVAC systems in residential settings.
This pressure switch ensures that your residential HVAC system operates optimally by reliably detecting pressure changes.
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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