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The McDonnell & Miller 304300 is a single pole, double throw (SPDT) snap-switch designed as a replacement part for a range of flow switches including models FS1, FS1-W, FS4-3D, FS5, FS6, FS8-W, and AFE-1. This switch ensures reliable operation in HVAC and other industrial applications.
This snap-switch is essential for maintaining continuous and efficient operations in systems requiring precise flow monitoring and control. Its compatibility with various models makes it a versatile choice for system maintenance and repairs.
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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