- Designed for easy water refilling in aquariums with cylinder wall thicknesses of 5mm, 6mm, and up to 8mm, ensuring compatibility with most standard setups. - Comes with an International Standard Cola Bottle connection, making it simple to use with readily available bottles. - The adjustable hose length allows for customizable water levels, tailored to your specific aquarium needs. - Compatible with domestic coke bottles, this product requires you to bring your own refill bottle, making it convenient and cost-effective. - Two adjustable configurations accommodate aquarium walls of 5mm and 6mm thickness. Cut the differential pressure pipe as needed—one end features a sloped mouth for efficient water flow. - The short tube indicates the maximum water level; when exposed above the liquid surface, water replenishment automatically halts, preventing overflow. Use Scenarios: 1. Perfect for freshwater and saltwater aquariums, this product simplifies routine water changes, helping to maintain a stable environment for your aquatic life. 2. Ideal for fish enthusiasts who regularly monitor water levels, ensuring that your aquarium remains adequately filled without the hassle of manual refills. 3. Suitable for aquaculture setups, where precise water management is crucial for the health and growth of fish and plants.