hygger Aquarium Gravel Cleaner, New Quick Water Changer with Air-Pressing Button Fish Tank Sand Cleaner Kit Aquarium Siphon Vacuum Cleaner with Water Hose Controller Clamp Recovery Collars & Cones Finally tighten the two large

Finally tighten the two large screws

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hygger Aquarium Gravel Cleaner, New Quick Water Changer with Air-Pressing Button Fish Tank Sand Cleaner Kit Aquarium Siphon Vacuum Cleaner with Water Hose Controller Clamp Recovery Collars & Cones Finally tighten the two largeFeatures: 3 in 1 Function: Dirt Suction. Gravel Vacuum for Aquarium equipped with a duckbill suction inlet accessory, and it is easy to suck the feces away. Sand Washing. Aquarium siphon with 3D Filter Basket Net, protect your love fish and small gravel from suck out of the aquarium. Water Changing. Built in dual airbags, atmospheric cavity, good resilience, effortless operation Working Principle: hygger's unique patented design equipped with a handle