Tigerlily Enterprises Aquarium Fish Tank Siphon Gravel Cleaner, Quick Water Changer with Flow Control Clamp. Hand Pump Cleaning Tools Kit Aquarium Vacuum Cleaner to Drain and Replace Water Quickly.

Gravel Cleaner (HG-001)
This fish tank siphon multifunctional cleaning tool can be used for water changes, sand washing and dirt suction. Ideal tool for any hobbyist. It provides a high-power suction and comfortable grip for a better user experience. With a total length of 170cm and a long stem, it is very practical and suitable for most small to medium sized tanks.

The product also boasts ease of use, portability, durability, lightweight and ultimately offers a mess free maintenance of your aquarium.

How to operate
1. Insert the water inlet tube into the fish tank. You can use the extension nozzle for larger pieces of gravel.
2. Place the water outlet tube into or over a bucket. Ensuring this is lower than the aquarium to enable a successful siphon.
3. Gently squeeze the blue operation bulb to start the siphon and continue to do so until the water begins to move freely into the bucket. Removing fish waste and uneaten food from your tank. 
4. To regulate the flow rate, please use the provided flow control clamp.
5. To extend this product’s operational life, please rinse regularly. 

Specifications 
Material - Premium BPA free and non-toxic PVC plastic.