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The McDonnell & Miller model FS7-4S is a stainless steel, 120-volt, single pole, double throw liquid flow switch. It is designed for industrial applications involving large pipes, including heating, hydronic systems, air conditioning, and refrigeration.
This flow switch is efficient for various industrial applications. The stainless steel construction provides durability, making it suitable for harsh environments.
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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