FESTO Pressure Hoses & Connectors Fluorescent sealing 612389 - FESTO 151717, Festo's fluorescent sealing, model MEB-LD-12-24DC, is designed for efficient illumination. This part is suitable for applications requiring visual indicators in automation systems. It typically aids in ensuring operational safety and status visibility. FESTO 151717 MEB-LD-12-24DC Light seal for MEB valves LED display