Features:1.High quality incubator humidifier for humidity control of hatching machine.2.Made from premium copper, it is durable, reliable and can be used for a long time.3.Fastening installation mode for easy mount and use.4.A good and direct replacement for the old or broken one.5.4 different power for your to choose, meet your different needs.Specifications:Item type: Humidification TubeMaterial: copperColor: silverVoltage: 220VOptions: 200W, 300W, 400W, 500W200W humidification tube size: Approx. 24x8.5x3cm/9.4x3.3x1.2in300W humidification tube size: Approx. 29x8.5x3.5cm/11.4x3.3x1.4in400W humidification tube size: Approx. 29x8.5x3.5cm/11.4x3.3x1.4in500W humidification tube size: Approx. 28x8.5x3.5cm/11x3.3x1.4inPacking List:1 x Humidification tubeNote:Can't use in dry, only use in the water.