QANVEE S300 S600 Multi-functional Vacuum Syphon Water Changer Cleaner Sand Gravel Washing Excrement Removal Fix Fish Tank Anti Backflow (S-300)

Can be fixed on the fish tank, to free your hands. Multi-functional: Water change, sand washing and excrement removal, fix fish tank and anti-backflow function, one-button Retractable design: The suction head can be retracted 35-50cm, it is more convenient to use and store, and the joint is detachable. Protection net cover design and anti-backflow design: The water inlet has a protective net cover to prevent the inhalation of small fish and shrimp during the water exchange process. Soft film at the joint to prevent water from flowing backwards Suitable for aquarium with glass thickness of 6mm or more.