The gray aquas hose with a diameter of 16/22 mm and a length of 18 m is a versatile product designed for various applications in the aquarium sector. It is ideal for air supply, water changes, and connections to filters and UV-C water clarifiers. The hose is resistant to ozone, oil, salt, acids, alkalis, gasoline, fats, and non-polar solvents, making it a robust choice for demanding environments. The gray color of the hose not only serves aesthetic purposes but also protects against algae growth inside. Additionally, the hose is free from heavy metals, making it environmentally friendly. It comes on an eco-friendly cardboard spool, allowing for easy handling and storage. This aquas hose is a practical solution for anyone needing a reliable and durable connection in their aquarium setup.