Liquid Metronics Incorporated (LMI) is the leading manufacturer of Chemical Metering Pumps, Controllers, and accessories. Our trademark yellow and black products are the standard for water treatment professionals around the world. LMI manufactures a wide range of electronic and motor-driven metering pumps and controllers for simple chemical addition, to complete systems to control conductivity, pH, and ORP.

LMI products are designed and manufactured in our ISO9001 facilities throughout the world for reliable, dependable operation in a variety of applications including; cooling towers, boilers, potable water, wastewater, swimming pools, plating, mining, car wash, oil & gas, etc.

Our customers rely on us for our versatility and experience in the industrial, commercial, residential, agricultural and OEM markets. All of our products are supported by a global network of stocking distributors and service centers.