Mosmatic DYU 500 bar Swivel 55.113Mosmatic DYU 500 Bar Swivel 55. 113 The Mosmatic 55. 113 DYU Swivel is an ultra heavy duty rotary swivel engineered for extreme pressure applications up to 500 bar. Built for professional and industrial cleaning environments, it provides exceptionally smooth rotation, reduces hose twisting and protects your guns, lances and accessories from excessive strain. Key Features Genuine Mosmatic DYU swivel rated to 500 bar Designed for extreme high pressure