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The McDonnell & Miller FS7-4D is a flow switch designed with two single-pole double-throw switches. This product is part of the McDonnell & Miller brand, recognized for its reliability and high performance in HVAC systems.
The McDonnell & Miller FS7-4D flow switch is ideal for use in various HVAC applications. It offers reliability and efficient performance, ensuring optimal operation of your systems.
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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