Features: 1.A specially designed water filler aiming to filling water for aquariums or fish tanks 2.Made of standardized high quality material, which is sturdy, durable and eco-friendly 3.Unique Double hanging design, can be directly hung on aquariums or fish tanks 4.Applicable for fish tank with thickness of 5-18mm; suitable for tank brace with thickness of 5-16mm 5.Adjustable water level ranging form 2cm to 15cm, and can work with RO water purifier or normal water bucket Specification: Description: This water filler is specially designed for filling water for aquariums or fish tanks in order to replenish those evaporated water and control the water level and prevent those aquarium creatures form dying due to the lacking of water. And this water filler is non-electric without consuming electric power, which is very practical and economical. Features: 1. A specially designed water filler aiming to filling water for aquariums or fish tanks. 2. Made of standardized high quality material, which is sturdy, durable and eco-friendly. 3. Unique Double hanging design, can be directly hung on aquariums or fish tanks. 4. Applicable for fish tank with thickness of 5-18mm; suitable for tank brace with thickness of 5-16mm. 5. Adjustable water level ranging form 2cm to 15cm, and can work with RO water purifier or normal water bucket. Specification: Item Type: Automatic Water Filler Material: Plastic Color: As shown in the Picture Package Weight: 294g Size: Approx. 18 x 5cm / 7.1 x 2inch Package Included: 1 x Water Filler with Holder Note: About those components and parts of this automatic water filler, please, refer to the pictures.