[Microfiltration] The filter cartridges are designed to trap only large debris and allow fine debris to pass through to prevent the cartridges from clogging as quickly when the pool is particularly dirty [Multi-version compatible use] filter perfect for Dolphin pool cleaner robots: S50 Active 10 , part number: 9991460-R1. [Plastic frame, more sturdy and] It firmly supports the filter layer and prevents it from breaking during work. same as model number 9991460-R1. [REDMIND INSTALLATION] If used correctly, ultra-fine filters can last 2 to 3 years. Please rinse the filter every 4 to 6 weeks for optimal performance [Please note] The physical difference or color difference does not affect the use, please don't worry, ! Material: plastic color: as shown Package Contents: 1 x Ultra Fine Filter Basket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The