Power-Packer’s DMI is a reliable, long-lasting hydraulic actuator designed to perform in applications that require maximum versatility. Ideal for situations with limited space, the DMI is designed with a pump, cylinder, couplers and hoses — all combined into one, compact, maintenance-free unit. Every DMI includes a pressure relief valve and a flow control valve to ensure smooth descent. The system is delivered fully assembled and tested, providing easy installation and longest life.