Siemens 257-02050 2-Way 1/2" Terminal Unit Valve, Cv 0.63, Normally Open, F x UM [New]

Siemens 257-02050 2-Way 1/2" Terminal Unit Valve, Cv 0.63, Normally Open, Stainless Steel Trim, F x UM Connection, Spring Return Pneumatic Valve Actuator, 3-8 psi (21-55 kPa). Siemens. Siemens. 257-02050.