The company is currently headquartered in Media, Pennsylvania and it is one of the largest suppliers of water-filtration products and services in the United States.

[2] They are known for providing water treatment facilities for the Manhattan Project during World War II.

In 1909, Roberts Filter Manufacturing Co. provided the filtration equipment for one of the first major municipal treatment plants, New Orleans, United States, with the capacity of 40 million gallons per day.

[4] The company also supplied about 600,000 75 millimeter high explosive shells for Canon de 75 modèle 1897.

Large scale dual media installations were built and operated at Hanford, WA as a part of the Manhattan Project during World War II.