Auto Aquarium Water Changer Kit Power Free Fish Tank Float Ball Valve Type Auto Water Filler Water Level Controller For Adding Water(1/4 Inch Tube Male) Package Including: 1 X Automatic Aquarium Water Changer Kit Material: Plastic, Acrylic Color: White Suitable Water Level Range: 0.5 To 15 Cm Float Ball Valve Size: 4.0*5.6 Cm/ 1.57*2.21 Inch Fish Tank Clamp Size: Length: 8.3cm/ 3.26 Inch, Groove Thickness: 1.7 Cm/ 0.67 Inch