Automatic filling system for aquariums, set of 2, for small tanks with a wall thickness of 3 to 10 mm (not suitable for tanks with lids or round tanks)

Refilling is automatic using the differential pressure principle. Without electricity, the water flows automatically from the bottle into the aquarium. This prevents the aquarium from running dry and saves you time and space. Simple and practical. Easy installation: Screw the water-filled bottle onto the refiller. The bracket is attached to the aquarium wall for a secure hold. A wall mounting bracket is included and can be adjusted to the wall thickness of your aquarium. Quiet water flow: A noise-dampening mechanism prevents air bubbles from dissipating and dampens resonance noises. No noise during filling. Suitable for standard bottle necks with standard threads. Suitable for small and medium-sized aquariums (not suitable for aquariums with lids or round aquariums). Suitable for glass thicknesses from 3 to 10 mm. The water level is freely adjustable. The hose length should be adjusted as needed. One longer and one shorter hose are required. The shorter hose determines the water level. Once the short hose is completely submerged, the automatic filling process begins. For aquariums with a diameter greater than 40 cm, two filling cycles are recommended.