Siemens 257-02059 2-Way 1/2" Terminal Unit Valve, Cv 4.0, Normally Open, F x UM [New]

Siemens 257-02059 2-Way 1/2" Terminal Unit Valve, Cv 4.0, Normally Open, Stainless Steel Trim, F x UM Connection, Spring Return Pneumatic Valve Actuator, 3-8 psi (21-55 kPa). Siemens. Siemens. 257-02059.