Compatibility: Easy to pair with Polaris 280 and 480 multipacks (parts K13 and K16). Hook-and-loop fasteners are designed to fit securely over pipe cleaners and close tightly on top. (Please confirm your model before purchasing) These nylon mesh pool cleaner bags feature strong stitching and mesh fabric, perfect for picking up debris or picking up small leaves and twigs without tearing at the bottom of the pool. Additional zipper opening makes this pool mesh bag easier to empty and clean debris from the filter bag. Significantly better than the Velcro type, which is an ultimate benefit for you EASY TO USE: Our versatile filter bags are easy to install, remove and clean. The upgraded clips are perfect for cleaners and users, they can be installed in seconds. The multifunctional filter bag is open on both sides, which is very convenient to clean.