FESTO Pressure Hoses & Connectors T-piece 612306 - FESTO 153356, The FESTO QSMT-M5-6 T-piece is a pneumatic connector designed for efficient air distribution in systems. It features a convenient and compact T-shaped design that allows for three-way connections, ideal for tight spaces. This part is typically used in automation and pneumatic systems for connecting and branching air flow. FESTO 153356 T-piece QSMT-M5-6 1pc M5 threading 6mm tube size