5,000 psi maximum operating pressure Allows 360¿ unrestricted 3 axis movement Swivels permit easy handling of control valves and prevent damage to hose caused by twisting Heavy-duty steel construction with ball bearings for smooth operation and free unrestricted movement The swiveling joints are hardened for durability and wear resistance 1/4" NPT(m x f) For use on ATD-5217 and ATD-5289 pumps