Power-Packer’s self-contained MK5 hydraulic actuator is a reliable, cost-effective solution for a wide range of patient handling and lifting devices. Its smart, intuitive design combines a pump, cylinder, valves and reservoir into one compact, maintenance-free unit, giving you years of trouble-free operation and trusted performance. Every MK5 hydraulic actuator includes an installed pressure relief and flow control valve to ensure smooth descent independent from the patient weight.