The Festo B-M3-S9 blanking plug, part number 30979, is a high-quality accessory designed for sealing unused ports in pneumatic systems. Featuring a male thread M3 and an external hexagon with a sealing ring, this RoHS-compliant plug ensures reliable performance and easy installation. Ideal for maintaining system integrity, the B-M3-S9 is LABS (PWIS) conformant and suitable for various industrial applications. Order online from Festo for efficient system maintenance and optimization.