【Premium Quality】The nylon mesh bags for Polaris 280 and 480 pool cleaners are firmly sewn and tightly woven. The fabric is made of the same material and woven in the same way as the Polaris and can hold all types of debris: leaves, insects, twigs, sand, and silt without easily damaging them. 【Easy to Use】These pool cleaning bags are easy to install with super strong hook and loop fasteners that can be removed for cleaning in seconds, and the extra-wide zipper opening makes it easier to empty and clean debris from the bag. 【Best Compatibility】These pool cleaning bags are compatible with Polaris 280/480 bags - sections K13 & K16. Note: This product is not compatible with Polaris 360 & K16 pool cleaner models. 380. 【Perfect Fit】The high-quality of this universal filter bag snaps securely onto the pipe cleaner and closes tightly at the top. The secure ABD safety closure provides total reliability.