The Coolant Mixing Station uses a positive displacement pump to mix water soluble fluids efficiently and at accurate concentrations. Designed specifically for mixing water based metal working fluids, the HBMS-7-12-120V automatically mixes at 2 to 7 GPM. The concentration can be changed by the user to ensure optimal fluid performance on a Just-In-Time basis. The system runs on 120 volt. Industrial Fluid Systems will custom build a system to meet your requirements. Coolant Mixing Station/System – Metalworking Fluids PDF