- Siphon Gravel Vacuum Kit ensures efficient aquarium maintenance with durable ABS construction and a robust PVC hose. The pinch ball is made from EVA, providing resistance to corrosion and wear. - Wash Sand and Water Changer features a dual-functionality design. Easily attach the sand washing cup for cleaning sand or small gravel while performing water changes. Alternatively, use the antisuction net cover for larger gravel cleaning and water replacement. - Clip-on design keeps the vacuum securely fixed to the aquarium glass without taking up additional space. The handle’s adjustable clip allows for easy attachment. The pinch ball simplifies water changes, minimizing the need for frequent disassembly. - Retractable and Extension Tubes include two rigid tubes that allow customization of length. The handle can be shortened or extended and secured with a nut. Add the extension tube to reach various tank sizes; retractable lengths vary from 26.4 to 31.5 inches for size S and 30.3 to 35.4 inches for size M. - Ideal for routine tank maintenance, this kit makes cleaning and water changes simple and efficient. Perfect for aquarists of all levels, it helps maintain a healthy aquatic environment for your fish and plants. Suitable for both fresh and saltwater tanks, ensuring versatility and convenience.