Function: The portable filter brush can quickly clean the dirt inside the filter element. And the rotary knob is convenient for users to adjust the water volume. This hot tub and spa filter cleaning tool is the ultimate maintenance accessory. Extends the life of pool or jacuzzi filters and equipment.Dimensions: The portable pool cleaning brush measures only 25 x 7 cm, compact and lightweight, easy to carry and does not take up much space.Adjustable: The pool filter brush fits standard garden hoses and can be connected to the water hose. And there is a rotary knob to adjust the size of the water flow.Convenient: Our pool filter cleaner can easily remove debris and dirt, so that you have a clean water flow. Removes debris from the filter in seconds. Designed to be compatible with most standard filters of jacuzzi, spa and swimming pool (except filters).describe1. Material: PVC2. Colour: blue3. Weight: 179g4. Size: 25*7cmcharacteristic1. No messy spraying.2. 12 prong operation, one simple motion opens 11 folds. Clean both sides of the pleats one at a time.3. Simply connect to your standard garden hose connector and water will move along each groove at high speed, providing a thorough cleaning for your hot tub or pool filter.4. The ultra-simple filter cleaner penetrates deep into the center of the filter pleats, providing thorough cleaning. It also prevents dirt from coming out of the pipe.5. Easily remove debris and grime to get clean water flow quickly and efficiently.Package includes: 1 x cleaning brush