Product Description
. . . . . Siemens 257-02040 1/2" AF x UM 2-Way Normally Open Valve Assembly, 3-8 psi, 2.5 Cv. Siemens. Siemens. 257-02040.
. . . . . Siemens 257-02040 1/2" AF x UM 2-Way Normally Open Valve Assembly, 3-8 psi, 2.5 Cv. Siemens. Siemens. 257-02040.