The Imagitarium Fresh&Salt water In CIRC 300 Water Pump is a circulation pump designed for use with a 40 gallon tank capacity. With a flow rate of 5.2 GPM and powered by 110V, it is suitable for all water types. This model, medium in size, is ideal for maintaining optimal water circulation in aquariums or other water systems. The brand, Imagitarium, ensures quality and reliability in this product.