Premium Quality: These nylon pool cleaner bags with strong stitching and tights are woven. The fabric and weave materials are the same as 280/480. Can hold all types of debris: leaves, insects, twigs, sand and silt, not easy to damage. Easy to Use: The extra-large zipper opening makes it easy to empty and clean debris in the filter bag. Easy to remove and install the hook fasteners that can be removed for cleaning in seconds. Perfect Fit: This universal filter bag has very strong hook and loop fasteners designed to snap securely onto the hose cleaner and close tightly at the top. A safe and secure closure provides total reliability. Best Compatibility: Works effortlessly with 280 and 480 Utility Bags (parts K13 and K16). You will receive 2 packs of strong and durable vacuums. Product Description Product Description Especially during daily use, your filter bags may become damaged or be too worn for further use. How to Replace a Pool Cleaning Bag: Step 1: Turn off your booster pump and disconnect the hose from the dedicated pressure cleaner line, then remove your cleaner from the pool. Step 2: Find the all-purpose zipper bags on top of the cleaner; the bag's plastic sleeve is the fastener that keeps the bag attached to the cleaner during operation. Step 3: To release the pool sweep bag, turn the bag's plastic sleeve clockwise or counterclockwise a fraction of an inch to release the pressure paddles inside the cleaner body. Step 4: Discard the used or damaged zipper filter bag. Step 5: With your new pool filter bag in hand, align the pressure paddles on the bag sleeve and the arrow on the cleaner connection hose and slide it down until you hear a click. Package Included: 2 x All-Purpose Bag for Polaris Notes: 1. These replacement vacuum bags are snug, please twist slightly when pressing the buttons. 2. Please make sure to tuck the ends of the zipper completely under before completely zipping it closed. 3. When you place it in the water for the first time, you must squeeze all the air out of the replacement bag.