Perfectly compatible with Polaris 280 and 480, K13 and K16 robotic pool cleaners. Same design and quality as the original Quality components: Ultra-fine mesh to capture the finest debris, high-end zip closure, durable seams with reinforced edges. The connection between the bag and the rigid plastic fixing ring keeps the bag entrance always open and allows for better passage of waste. Easy installation and use thanks to the automatic locking claws, the hook-and-loop fastener to the hose for better passage of debris, easy opening of the bag thanks to the quality hook-and-loop fastener that runs the entire width of the bag. Set of 2 silt bags adaptable to ZIP for Polaris 280 or 480 robot. Quality at the best price. Product description Set of 2 silt bags adaptable to Polaris 280 or 480 pool cleaner robot, model identical to the K13 K16. Bag closes with a zipper or zip. Quality materials for longer life.