The negative ions generated in the water feature helps to purify the surrounding air, creating a positive atmosphere and affecting your mood. The water pump is the finishing touch to the water feature. It is important to choose a water pump that suits your waterscape. At jierpump.com, as the submersible pump manufacturer, we produce a variety of flow rate pumps, built to optimize any water feature. Jier submersible Pump is IP68 grade waterproof, compact design and powerful speed, while the 12v submersible pump is almost always safe. Advanced features include easy flow rate adjustment via a built-in flow regulator, a removable screen for easy maintenance and a variety size of outlet nozzles for maximum flexibility in installation. Built to run steady and quiet, it will never intrude on the tranquility of your water feature.