Material: ABS plasticInput voltage: ac110 - 220VLength: 56-82cm (adjustable)Precautions / usage:① When starting up, the water level needs to reach the water level marked by the host to work, otherwise it will lead to no water supply.② In the process of use, the sand washer can be improved, but the water inlet of the sand washer can not leave the water surface, otherwise it will enter the air, resulting in the interruption of water absorption.③ The idle time of the machine from the water should not exceed 1 minute.characteristic:-Easy to install aquarium wash sand water exchanger.-With this tool, you can remove dirt from the bottom of the aquarium.-The bottom sand, siphon fish dung and other dirt can be effectively cleaned without changing water.-Press the on / off button at the top, and the water in the aquarium tank will be automatically pumped out through the hose to change the water.