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 Tube Material: copper Color: silver Voltage: 220V Options: 200W, 300W, 400W, 500W 200W humidification tube size: Approx. 24x8.5x3cm/9.4x3.3x1.2in 300W humidification tube size: Approx. 29x8.5x3.5cm/11.4x3.3x1.4in 400W humidification tube size: Approx. 29x8.5x3.5cm/11.4x3.3x1.4in 500W humidification tube size: Approx. 28x8.5x3.5cm/11x3.3x1.4in Packing List: 1 x Humidification tube Note: Can't use in dry, only use in the water.