The Rexroth R900156528 is a highly reliable 4WMM6 series hand-lever operated directional spool valve engineered for precise fluid control in industrial hydraulic systems. Built with a robust blue painted steel valve body, it features a standard size 6 (NG6, CETOP 3 / ISO 4401-03) subplate mounting interface. The mounting face is designed with four port bores arranged in a diamond pattern alongside four corner mounting holes for secure and standardized installation. It is equipped with a manual hand-lever actuator protected by a durable rubber boot, ensuring long-lasting manual operation even in demanding environments. A protective PE-LD plastic port cover is included to safeguard the mounting face prior to installation.