?<strong>Features:</strong><br />Easy to install and operate.<br />Press the power on/off button， and the water will be pumped out automatically.<br />Clean gravel， siphon the fish excreta and other dirt out effectively without requiring a water change.<br />Also be used as a water siphon for water changes， or to empty your aquarium when you connect a hose to outlet.<br />Battery powered， safe for you and your fish.<br />With adjustable height， it is suitable for small and large aquariums.<br /><br /><strong>Specifications:</strong><br />Material: Plastic<br />Power: 2 * size 2 battery / 2 * size 3 battery (not inclueded)<br />Flow rate： 520 L/h<br />Max water depth: 52cm / 20.47in<br />Max item height: 82cm / 32.28in<br />Package size: 30 * 10.5 * 5cm / 11.81 * 4.13 * 1.96in (L * W * H)<br />Package weight: 276g / 9.74oz<br /><br /><strong>Note: </strong>Ensure to reach the lowest water level when start working， after the power is on， the water level dose not have to reach the lowest water level.<br /><br /><strong>Package list:</strong><br />1 * Aquarium fish tank gravel cleaner<br />1 * Hose<br />1 * Filter<br />1 * Long tube