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McDonnell & Miller

ITT McDonnell & Miller – the industry leader. Delivering reliable performance and safety in boiler and level control products for over 75 years.

Whether it’s ease of serviceability, continuous improvement, product enhancements or interchangeability, ITT McDonnell & Miller is continually doing more to give you the best performing residential, commercial and industrial liquid level and flow control products found anywhere.

ITT McDonnell & Miller is the recipient of the highly coveted ISO 9001 Certification. Recognized by more than 140 countries, these worldwide standards provide a uniform measure of quality procedures in manufacturing and service organizations.


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McDonnell & Miller

Flow Switches

Low Water Cut-Offs

Low Water Cut-Offs/Pump Controllers

Water Feeders

Replacement Parts