The Lees Ultra Gravel Vac With Squeeze Bulb - Medium (10" Long With Flow Control Valve) is the ultimate solution to simplify your water changes and keep your fish safe. Unlike regular siphons, this gravel vac utilizes a unique squeeze bulb that makes the siphoning process a breeze. With the strainer feature, you can rest easy knowing that your precious fish will not get caught during the cleaning process. The simple squeeze bulb operation ensures hassle-free usage, allowing you to effortlessly control the flow of water. Measuring at a convenient size of 2" x 10", this medium-sized gravel vac is perfect for your aquarium cleaning needs. Please note that Model 11544 does not include a control valve, while Model 11545 comes with a control valve. Experience the ease and convenience of Lees Ultra Gravel Vac With Squeeze Bulb - Medium (10" Long With Flow Control Valve) today and enjoy a sparkling clean aquarium for your beloved fish. Perfect for fish enthusiasts, the Lees Ultra Gravel Vac With Squeeze Bulb - Medium (10" Long With Flow Control Valve) is an essential tool for maintaining your aquarium's cleanliness.