The Festo MS4-WR-B, part number 8149680, is a robust valve terminal designed for industrial automation applications. As part of the MS series, it features a size 4 configuration and offers moderate corrosion resistance (CRC class 2), making it suitable for environments with moderate corrosion stress. This valve terminal is ideal for controlling pneumatic systems, ensuring efficient and reliable operation. Its compatibility with various mounting brackets and plug sockets enhances its versatility in complex automation setups. The MS4-WR-B is engineered to meet LABS (PWIS) conformity standards, ensuring minimal contamination in sensitive applications.