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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29
This specific model is optimized for R-22
High Load Capacity: Optimized internal geometry supports significant radial loads and moderate axial loads in both directions
the control board will trigger a safety lockout
Always use genuine OEM part 511-624-450 for these models
Lochinvar & A.O. Smith 100208661 Flow Switch 323080-701 This specific model is optimizedThe Lochinvar & A. O. Smith 100208661 Flow Switch, also identified by part number 781621 or alias FS8 W, is a heavy duty liquid flow switch engineered for precise proof of flow detection in high efficiency commercial boiler systems and water heaters. Designed as a direct HVAC replacement part for the McDonnell & Miller FS8 W, this unit features a durable stainless steel #3 paddle configuration to ensure reliable contact closure once the system pump
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