Lee’s Ultimate GravelVac Kit (25 ft) – A faucet-connected aquarium cleaning system that makes water changes and gravel cleaning almost effortless. The kit attaches to your sink faucet (adapter included) to create a powerful siphon – vacuum debris from gravel and send dirty water straight down the drain. Flip the faucet adapter switch, and it can also refill the tank with fresh water. This 25’ kit comes with a gravel tube, hose, and faucet pump, allowing mess-free, high-speed tank maintenance for medium to large aquariums.