SF15-2 M1 Two-way Zone Valve return spring, 1/2“ F, DN 15, 230 V, auxiliary microswitch, NC in stock Detail Code: 3349
SF20-2 M1 Two-way Zone Valve return spring, 3/4“ F, DN 20, 230 V, auxiliary microswitch, NC in stock Detail Code: 579
SF25-2 M1 NO Two-way Zone Valve return spring, 1“ F, DN 25, 230 V, auxiliary microswitch, NO in stock Detail Code: 4773
SF25-2 M1 Two-way Zone Valve return spring, 1“ F, DN 25, 230 V, auxiliary microswitch, NC in stock Detail Code: 614
SF15M1 Three-way Zone Valve return spring, 1/2“ F, DN 15, 230 V, auxiliary microswitch in stock Detail Code: 4170
SF20E M1S Three-way Zone Valve return spring, 3/4" M, DN 20, 230 V, 2-pole aux. microswitch in stock Detail Code: 6766
SF20 M1 Three-way Zone Valve return spring, 3/4“ F, DN 20, 230 V, auxiliary microswitch in stock Detail Code: 958