This awesome water pump comes with an adjustable flow and is easy to clean. Strainer protects impeller from damage. Shell is made of high-quality ABS plastic. This pump is a totally submersible flow-adjustable water pump. The motor will automatically cut off the power if it is overheating. The flow can be up to 212GPH. It has good waterproof, has high dielectric strength, and is safe and reliable. Suitable for acid, alkali, and salt environments.