ATIE 3900 Pool Cleaner Double Chamber All Purpose SuperBag 39-310 with Hook and Loop Fastener Closure for 3900 Sport and P39 Pool Cleaners SuperBag 39-310 (2 Pack)Brand: ATIE Color: Gray Features: Improved design features: This bag adds a Hook and Loop Fastener "Pulling Tab" design which makes it much easier to open velcro closure to empty debris This bag uses Hook and Loop Fastener closure design instead of zipper closure. Zipper opening would always get stuck with debris and sand. Ideal for collecting a variety of pool debris, including leaves, bugs, small pebbles, sand, silt, and more Compatible with Polaris