1. This automatic refill system is easy to install on your aquarium sump. Can meet 16/12 water pipes.2. Manual adjustment of float valve, no other tools, no metal screws, no corrosion.3. The bracket is made of high-quality material, stable and heavy enough, not easy to bump.4. It can be installed on the support tank and the wall of the aquarium. The water level adjustment float replaces the bracket adjustment. There are three installation methods, which are simple and convenient.5. This water filler is specially designed to fill water in aquariums or fish tanks to replenish evaporated water, control the water level, and prevent aquarium inhabitants from dying due to lack of water.Specification:Condition: 100% Brand NewItem Type: Automatic Water FillerMaterial: Acrylic, PlasticColor: As shown in the picture Length: approx. 150mmAdjustable Height: approx. 80-140mmFloat Ball Size: approx. 40 x 56mmWeight: approx. 72gApplication: Automatic Tank RefillPackage List:1 x Set of Automatic Water Filler (5 parts).Note:1. Due to manual measurement, there may be an error of 1-2 cm. Thank you for your understanding.2. Since monitors are not calibrated the same, item color displayed in photos may be showing slightly different from the actual object. Please take the original as standard.3. Please note that you will receive several spare parts that you need to assemble yourself.