Previous Product Next Product 3R80 Hydraulic rotary knee joint – Code: EME – 187 Category: PROSTHETIC KNEES ENQUIRY! Description Description For K3, K4 users. Hydraulic knee with rotary cylinder Rotary hydraulics control stance and swing phase. Maximum body weight up to 330 lbs. (150 Kg). Related products Quick View Quick View Pneumatic knee joint – Code: EME – 185 Quick View Quick View SINGLE AXIS KNEE – Code: EME – 184 Quick View Quick View Pneumatic joint for KD- Code: EME – 186