hygger Upgrade Aquarium Water Changer Kit, Semi-Automatic Fish Tank Gravel Cleaner, with 33 FT Water Hose, Flow Control Valve

〒Quickly Change Water〓 just use a long flexible hose and 2 flow valves, you can change the aquarium water more quickly and easily, no need for electricity. It's a semi-automatic water changer suitable for medium and large fish tanks. No spill, no mess, and no heavy lifting for changing dirty water and adding clean water.

〒Aquarium Gravel Cleaning〓 When you use this water changer to suck away aquarium dirty water, you can move the gravel tube to clean the gravel or install the duckbilled on to clean fish feces. With the pressure from the water, the gravels and sands can be sucked up to the gravel tube and then vacuum out the debris in gravel.

〒Non-electric & Quiet〓 this aquarium water changer is not electric, no noise, no disturbance to your fish or plants. All you need to do is to control the 2 valves and open the faucet. With 2 orange built-in control valves on the water changer, to turn it on or off, you just need to rotate the valve by 1/4 turn up or down. To add clean water to the aquarium, please remember to keep the water flow assembly valve closed, so when you open the faucet, the water will flow into the hose.

〒3 sizes available〓 choose the size according to the distance from your fish tank to the sink faucet. The flexible water hose length available: 25ft, 33ft, 49ft. The inner diameter of the hose is 1/2 inch. Each pack comes with a 15/16" threaded faucets adapter (large diameter: 23.8mm), a M21 threaded faucets adapter (large diameter: 21mm), and a 3/4" threaded faucets adapter (large diameter: 26.4mm). So the water changer can be used for most faucets.

〒Easy to Install〓 It's very easy to use, attach the water flow assembly to the faucet. To change water, after connecting the flexible hose to the water flow assembly and the gravel tube, firstly you should submerge the gravel tube in the aquarium tank water and keep its orange valve closed, secondly, keep the water flow assembly's orange valve open and open the faucet, finally, open the gravel tube valve, and the dirty water will be sucked into the hose and flow away.