Features: 1. Ultra Quiet: This aquarium internal filter could supply oxygen and create an aquarium water cycle. It provides a healthy living environment for your lovely pets. eg, fish and turtle. Low noisy, you can use it in your bedroom aquariums. 2. Leave The Water Crystal Clear: Adopts 1/2/3/4 stages filtration to ensure water clarity. The filter boxs pre-fill up with biochemical sponge,ceramic ring and biochemical ball. 3. Easy to Set Up and Clean: The fully submersible filter with suction cups is easy to place inside your fish tank. The transparent filter box is visible that you will know when to clean or replace the filter cartridge. 4. Submersible Water Pump: You can lay down the filter at the bottom of the aquarium and use it as a water pump. Specifications: 1. Material: plastic & magnet 2. Voltage:220-240V 50Hz 3. Power: 18w 25w 30w 40w Caution: 1. We may send you a plug adapter(EU, US, AU, UK,etc) according to your country . If you need another type, please leave a message after ordering or contact us directly. 2. Please double comfirm your local voltage and frequency before you place the order.If not match,the pump would not work. 3. There might be performance tolerance becuase of the tolerance of your local voltage and frequency.