McDonnell & Miller is a leading manufacturer of boiler and liquid level controls for steam and hot water systems. With a long-standing history in the industry, the company is widely recognized for its reliable low water cut-offs, flow switches, water feeders, and level controls used in commercial, industrial, and institutional applications.
McDonnell & Miller products are designed to enhance boiler safety, improve system efficiency, and protect equipment from damage caused by low water conditions. In addition, selected products such as flow switches may also be applied in fire protection systems to monitor water flow within piping systems and provide signal output for control or alarm functions where required.
The brand is part of the Watts Water Technologies family, a global provider of plumbing, heating, and water quality solutions.
Through continuous product innovation and engineering expertise, McDonnell & Miller delivers dependable control solutions that meet the demanding requirements of HVAC, boiler, and related system applications worldwide.
