Never used product, packaging damaged during transport. Unopened product, repackaged in our warehouses, in perfect working condition, warranty available. There is a button to adjust the water intensity according to your cleaning situation to save water. Comes with a connector, can install a hose to increase the length of the pool filter cleaner. Easy to use, press the start button when using, press the stop button after cleaning. Suitable for above-ground and in-ground pools. It also applies to spas and hot tubs. Can remove debris and dirt from the filter in seconds to save time and energy.