The motor drives the cylinder washing stone rotation, the cylinder washing stone stones produced friction. In this process, water is added to form a strong flow of water to clean the stone surface of impurities and foreign bodies. The clean stone is then transported to the appropriate position by ......

The external pressurized pond filter allows maximum flexibility in positioning your pond filter. Unlike other pond filters, these can be placed further away from the pond or even partially buried, hiding them in your landscape.