FUNCTION: The hand-held filter brush can quickly clean the dirt inside the filter element. And the twisting button is convenient for users to adjust the water volume. This spa and hot tub filter cleaning tool is the ultimate maintenance accessory. Extend the service life of pool or hot tub filters and equipment. SIZE: compact and lightweight, easy to carry and not occupying much storage space. DURABLE: The pool filter brush made from high quality PVC material, tough, wear resistant and durable, owning long using life span and will not damage the filter element. The swimming pool filter cleaning tool is ergonomic spray handle. ADJUSTABLE: The swimming pool filter brush fits standard garden hose and can be connected to the water pipe. And there is a rotary button to adjust the size of the water flow. CONVENIENT: Our swimming 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 ).