Features: Wide Application: The aquarium water filler can be used to replenish water in fish tanks and improve fish living environment. The fish for tank water changer features fully automatic start and stopping, no electricity is needed. Adjustable Valve: The shaft adopts plastic instead of metal material, no need to worry about corrosion. Suitable for both for fresh water and marine water. Transparent Bracket: Custom hand-tightened screws, sturdy and durable, the multi-purpose holder can also be used for water and land for tank spray system fixation. Easy to Use: The ATO system is easy to hang on to your aquarium sump. Specifications: Material: Plastic, Acrylic Color: White Size: (Please Refer to the Pictures for More Details) Bracket-Approx.60x31mm/2.36x1.22in, Hole Diameter 16mm/0.63in Float Ball-Approx.43x55mm/1.69x2.16in Weight: Approx.80g Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Auto Water Filler for Fish for Tank, Including: 1 x Float Ball 1 x for Valve 1 x Transparent Bracket 2 x Bend 1 x Washer 2 x Sucking Cup