Chesapeake Utilities, 909 Silver Lake Blvd, Dover, DE 19904, US

Established in 1889, the Roberts Filter Group of companies specializes in providing services for the water and wastewater industry. Located in Darby, Pa., the Roberts Filter Group is a family of companies, each designed specifically to serve individual needs throughout the United States and beyond. It offers a wide array of products and services, including pressure filters, GAC (global assembly cache) systems, gravity/package filtration, residuals, pretreatment, instrumentation and control. Services offered include pilot testing, raw water analysis, plant/filter inspections, plant optimization/rehabilitation and turnkey operations.