PREMIUM QUALITY: These nylon mesh pool cleaner bags use durable ABS connector and pantyhose weave, with strong stitching and zipper closure, which allows it to withstand up to 120 microns , including leaf twigs, small particles and dirt particles. COMPATIBILITY AND NOT COMPATIBILITY: - - 2 Pack Pool Cleaning Trash Bags Perfect for Polaris Pool Cleaners 360 and 380, spare part numbers: 9-100-1021, 9-100-1014. - -Not suitable for Polaris 280 or 480 pool cleaners with "oval tip" plastic clips, and not for 180 pool cleaners with velcro. EASY TO USE: The filter bag versatile is easy to set up, take down and clean with super strong hook-and-loop fasteners, and can be removed for cleaning in just seconds. NOTE: If the vacuum does not move or does not clean dirt and debris as effectively as before, you may just have to empty the contents of the bag as the bag may be full. Please confirm your Polaris model before purchasing.