General description Compatible Replacement Bag for Polaris 280 and 480 Pool Robots, these multi-purpose nylon zipper bags come in a pack of 2. They are designed to work effortlessly with Polaris utility bags (parts K13 and K16). Technical specifications Material: Durable nylon with strong stitching Type: Reusable, tear-resistant mesh bags Closure: Heavy-duty Velcro Quantity: 2 bags included Installation Turn off the booster pump and disconnect the hose from the dedicated line of the pressure washer before removing the cleaner from the pool. Remove the universal Velcro bag from above the vacuum cleaner hose. Align the pressure plate on the new bag sleeve with the arrow on the cleaner's connecting tube and slide it down until you hear a click. Usage These bags can hold various types of debris including leaves, insects, twigs, sand, and silt. The specific net shape prevents debris from falling out when the robotic cleaner is stopped. The extra-large zipper opening allows for easy