The ATK HydraPro HD is a waterproof and highly functional 4-bar prosthetic knee joint, designed to meet the physical demands of active amputees. LegWorks’ patented Autolock Technology stance phase controller instills confidence on all terrains, while the Hydraulic Variable Cadence Controller (patent pending) allows for multiple walking speeds. An ideal knee for K3-K4 users who desire a water leg, the ATK HydraPro includes a simple twist-knob manual lock that allows for absolute stability in or around the water.
Ships with the blue cover installed. Box includes an alternate black cover (shown here on the stance flexion model).