Central Boiler Outdoor Wood Furnace Solenoid (2000 and newer) Dormeyer 2005-M-1, Dayton 4X240 Laminated Solenoid Constructed of durable laminated steel with corrosion-resistant frame and plunger. Stroke Range: 1/8 to 1" 120VAC Coil Volts, Guardian 18-C-120