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 spa and hot tub filter cleaning tool is the ultimate maintenance accessory. Extend the life of swimming pool or hot tub filters and equipment. Dimensions: The portable pool cleaning brush is only 22 x 10 x 5 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 pipe. And there is a rotary knob to adjust the size of the water flow. Practical: Our pool filter cleaner can easily remove debris and dirt, so as to have a clean water flow. Removes debris from the filter in seconds. Designed to be compatible with most standard hot tub, spa and pool filters (excluding filters). Product Description Bestine. Bestine Europe mainly sells daily household products, kitchen supplies, pet supplies, plastic products,