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The Weil McLain 640-000-088 is a 3 Way Zone Valve designed for use in hydronic heating systems. This valve controls the flow of hot water to ensure efficient temperature regulation.
The Weil McLain 640-000-088 provides reliable operation in demanding environments, making it a trusted choice among HVAC professionals.
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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