- Efficient water transfer: The manual water changer for siphon pipes provides a convenient and efficient way to transfer liquids. With the hand pump and filter, you can easily suck water from one container to another without problems or mess. - Food-grade material: Made of food-safe silicone hose, this water changer is safe to use with your aquarium or other water containers. You can trust that it will not contaminate your water or harm your fish or plants. - Easy to use: Insert the hose into the containers between which you want to transfer liquid and make sure there is a height difference. Then simply press the hand pump to start the siphoning process. It is a user-friendly tool that anyone can use with ease. - Long hose length: the hose has a generous length of approx. 2 meters, which allows flexibility and comfort during fluid transfer. It has enough reach to easily access different containers without having to move them. - Use scenarios: aquarium maintenance for water changes; transferring water between large containers or from a reservoir to smaller containers; refilling plant watering cans or hydroponic reservoirs.