This application includes companies that are engaged in brass rolling and where a coolant is used to cool, lubricate and transfer brass particulate and contaminants from the brass rolling mills to filtration systems using Hydro Band Filters or Double Disc Filters. Particulate and contaminants are removed by the filter and system pumps transfer clean coolant back to the rolling mill. Brass rolled products are used in many industries worldwide including automotive, electrical transmission, lighting, aerospace, computer components. Complete system packages including tanks, pumps, heat exchanger and controls can be proposed.