McDonnell & Miller products offer liquid control for boilers, DA tanks, condensate systems, and many other applications where safety and reliability are critical. McDonnell & Miller is a Xylem brand, creating innovative solutions to meet the world’s water needs.

Boiler Controls

  • Combination Low Water Cut-off / Pump Controllers
  • Low Water Cut-Offs

Flow Switches

  • Air Flow Switches
  • Liquid Flow Switches

Liquid Level Controls

  • Probe type
  • Float type
  • Pneumatic type

Water Feeders

  • Electric Water Feeders
  • Mechanical Water Feeders