Compatible Replacement Bag for Polaris 280 480 Pool Robot Multi-Purpose Nylon Zipper Bags (2 Pcs) Better Compatibility: Works effortlessly with Polaris 280 and 480 utility bags (parts K13 and K16). You will receive 2 packs of durable bags. Materials: These nylon pool cleaning bags with strong stitching and mesh are woven, durable, reusable, and tear-resistant. It can hold all kinds of debris: leaves, insects, twigs, sand, and silt, which are difficult to damage. Easy to Use: Specific net shape to prevent debris from falling when the robotic cleaner is stopped, the extra-large zipper opening makes it easy to empty and clean debris in the filter bag. Easy to remove and install mounting hooks that can be removed for cleaning in seconds. Perfect Fit Premium Velcro Closure This universal filter bag features heavy-duty Velcro closures designed to fit securely to the pipe cleaner and close tightly at the top. A safe and secure closure provides total reliability. How to Replace the Pool Filter Bag Turn off the booster pump and disconnect the hose from the dedicated line of the pressure washer before removing the cleaner from the pool. Take the universal Velcro bag over the vacuum cleaner; the hose. The plastic sleeve of the bag serves as a fixing element, which can be fixed on the vacuum cleaner during operation. Turn the plastic sleeve bag clockwise or counterclockwise to release the pressure plate on the vacuum cleaner body and lift it up. andlt; pandgt; Discard the used or damaged filter bag. Hold the new pool filter bag, align the pressure plate on the bag sleeve with the arrow on the cleaner's connecting tube, and then slide it down until you hear a click. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.