1/4″ 1/2″ 3/4″ – 2″ All Copper Solenoid Coil For Electric Valve AC220V DC24V/12V Material: Copper. Size: 1/4"- 2". 2W350-35B 1-1/4", Traffic Calibre: 35mm. 2W200-20B 3/4", Traffic Calibre: 20mm. 2W160-15B 1/2", Traffic Calibre: 16 mm. About item. byJuly 4, 2026